Niby znany z serialu, ale nie do końca zrozumiały. Czym jest Folketing i co jest w nim wyjątkowego?

Nazwa Folketing oznacza dosłownie „rzecz ludu”. Folketing to duński parlament jednoizbowy. Jest emanacją duńskiego przywiązania do zasad demokracji i praworządności.

2023/02/01

Odwiedź nas i poznaj - Tourism Australia: Travel to Australia - Australian Tourism ...

Looking for travel inspiration? Discover Australia's sparkling beaches, friendly wildlife and natural wonders. There's never been a better time to travel to

2023/02/01

A Praia de Copacabana

O Bairro de Copacabana representa um dos conjuntos paisagísticos brasileiros mais conhecidos em todo o mundo, sendo um dos cartões postais do Rio de Janeiro, a “Cidade Maravilhosa”. Situada na zona sul da cidade, Copacabana ocupa uma área de cerca de 4 kms² e conta com uma população de mais de 150 mil pessoas. A praia de Copacabana é embelezada por um longo calçadão de pedras portuguesas, reproduzindo as ondas do mar, e concentra dezenas de hotéis, o que faz dela um dos principais polos turísticos do Rio de Janeiro.

2023/02/01

54. rocznica samospalenia studenta Jana Palacha

W dniu 16 stycznia 2023 roku mija 54. rocznica samospalenia studenta Jana Palacha, który w ten dramatyczny sposób zaprotestował przeciwko rosnącej apatii narodu wobec trwającej sowieckiej okupacji. Dwadzieścia lat później, w styczniu 1989 roku, odbył się "Tydzień Palacha" - cykl antykomunistycznych demonstracji zainspirowanych upamiętnieniem czynu Palacha.

2023/01/31

AUSTRALIA THE ULTIMATE TRAVEL GUIDE | BEST PLACES TO VISIT | TOP ATTRACTIONS

Australia is a wild and beautiful place, a land whose color palette of red outback sands and Technicolor reefs frames sophisticated cities and soulful Indigenous stories. Top Attractions: Sydney Opera House Sydney Harbor Bridge Great Ocean Road Melbourne

2023/01/31

Independence Day of the Republic of Nauru

Nauru, island country in the southwestern Pacific Ocean. It consists of a raised coral island located in southeastern Micronesia, 25 miles (40 km) south of the Equator. The island is about 800 miles (1,300 km) northeast of the Solomon Islands; its closest neighbour is the island of Banaba, in Kiribati, some 200 miles (300 km) to the east. Nauru has no official capital, but government offices are located in the district of Yaren. Land Most of Nauru rises somewhat abruptly from the ocean, and there are no harbours or protected anchorages. A fairly fertile but relatively narrow belt encircles the island and surrounds the shallow inland Buada Lagoon. Farther inland, coral cliffs rise to a plateau 100 feet (30 metres) above sea level, with the highest point at about 213 feet (65 metres). The plateau is largely composed of rock phosphate, leached from guano, or bird droppings. The mineral deposit covers more than two-thirds of the island, and its extraction has left irregular, pinnacle-shaped outcrops of limestone that give the landscape a forbidding, otherworldly appearance. Nauru’s climate is tropical, with daytime temperatures in the low 80s F (about 28 °C), tempered by ocean breezes. Rainfall, averaging about 80 inches (2,000 mm) annually, is extremely variable, and prolonged droughts occur. The only locally available water is collected from roof catchment systems, and water is imported as ballast on ships returning to Nauru for loads of phosphate. There are no rivers or streams. Soils are generally poor and highly porous, and the irregular rainfall limits cultivation to the coastal belt and the lagoon’s fringe. Phosphate mining has ravaged the interior of the island, leaving about four-fifths of it uninhabitable and uncultivable. Subsistence crops, consisting mainly of coconut palms, pandanus, bananas, pineapple, and some vegetables, are not adequate to support the population; the land does yield a great variety of plants and trees, however. Nauru is a favourite stopover point for migratory birds, and chickens have been introduced. There was an absence of mammals until rats, mice, cats, dogs, and pigs were also imported. People Most of the island’s residents are indigenous Nauruans. There are small numbers of I-Kiribati (Gilbertese), Australians, New Zealanders, Chinese, and Tuvaluans; many members of the latter two groups were recruited as workers by the phosphate industry. Nauruan is the national language. No adequate written grammar of the language has been compiled, and its relationships to other Micronesian languages are not well understood. English is widely spoken. Nauru is considered one of the most Westernized countries in the South Pacific. Missionization came later to Nauru than to many other Pacific islands. The first Protestant evangelist arrived in 1899 and was followed three years later by the first Roman Catholic missionary. Today more than four-fifths of Nauruans are Christians; more than half the total population is Protestant (mostly members of the Nauru Congregational Church), and one-third is Roman Catholic. The settlement pattern on the island is dispersed. People are scattered along the coastal zone, and there is one small village, Buada, inland near the lagoon. Economy Agriculture (with the exception of coffee and copra plantations along the coastal and lagoon perimeters), fishing, manufacturing, and tourism are of minor value to the overall economy. However, Nauru has an exclusive economic zone extending 200 miles (320 km) offshore. The sale of commercial fishing licenses began to bring in a steady revenue during the 1990s. Phosphate has been mined on Nauru since 1907. For decades it was Nauru’s main resource and sole export, dominating the island’s economy, and its quality was the highest in the world. The phosphate industry and government services together provided almost all of the island’s salaried employment. For much of the 20th century the phosphate industry was owned and operated by a corporation jointly managed by the British, Australian, and New Zealand governments. The government of independent Nauru gained control of phosphate operations in 1970, and in the 1980s Nauru was for a time one of the wealthiest countries in the world in terms of gross domestic product per capita. Landowners received royalties from the phosphate earnings, and many Nauruans were unemployed by choice. By the late 20th century, however, the phosphate deposits were quickly becoming exhausted, and Nauru experienced a severe drop-off in earnings, leading to the country’s near bankruptcy by the early years of the 21st century. Nauru struggled to develop other resources and find alternative sources of income. However, the country experienced some economic respite late in the first decade of the 2000s when repairs and improvements to mining-related infrastructure expedited the extraction and export of the remaining primary phosphate deposits and allowed the more difficult extraction of secondary phosphate deposits. In the early 21st century Nauru agreed to temporarily house hundreds of Australia-bound asylum seekers while they awaited the processing of their applications. In exchange, the Australian government provided millions of dollars in aid to Nauru. Virtually all food, water, and manufactured goods are imported. Australia supplies nine-tenths of Nauru’s imports; far smaller amounts come from New Zealand, Fiji, and Japan. Nigeria receives almost half of Nauru’s exports, and South Korea and Australia combined take another one-third. With the exception of those levied on alcohol and tobacco, there are no import duties. There is no income tax. Nauru has its own banking system; the Bank of Nauru is wholly owned and operated by the government. The financial sector grew in importance after the 1980s as the island became known as an offshore banking centre and tax haven. Beginning in 1999, amid allegations that it was a money-laundering conduit for organized crime and terrorist organizations, the financial sector underwent a series of reforms to increase its transparency. As one consequence of its colonial history, Nauru is within the Australian monetary system, and Australian currency is the country’s legal tender. Transportation on the island is good. A paved road system links all villages. Surface transportation to other destinations is difficult. Because there are no wharves or natural harbours, passengers and cargo are shuttled by barge between oceangoing vessels and a small artificial anchorage. Most regional and international travel is by air. Nauru’s sole airport is located in Yaren district. In 1970 the country launched its national airline, control of which was transferred in 1996 to a government-owned corporation. Government and society Nauru’s constitution, implemented with independence in 1968, calls for broadly phrased fundamental rights and freedoms for individuals and a government that combines parliamentary and presidential systems. The parliament, whose members are elected by Nauruan citizens age 20 and older, has a tenure of three years unless dissolved by a vote of no confidence. It elects the president, who is both head of state and head of government. The president appoints a cabinet from the parliament. In 1999 Nauru became a full member of both the Commonwealth and the United Nations. The tripartite judicial system comprises a Supreme Court, a District Court, and a Family Court. The Supreme Court, presided over by a chief justice, has both original and appellate jurisdiction. At Nauru’s request, final appeals may be taken to the High Court of Australia. Basic services in education and health are provided free to all citizens, though services have been reduced as a result of the country’s changing economic fortunes. There is no government social security system. Education is compulsory between ages 6 and 16. The government provides several kindergartens and elementary and secondary schools. The Roman Catholic mission has its own school system at the same three levels. Traditionally, students have gone abroad, mainly to Australia, for higher education. More …. Source: https://www.britannica.com/place/Nauru  

2023/01/31

Indian Republic Day

India, country that occupies the greater part of South Asia. Its capital is New Delhi, built in the 20th century just south of the historic hub of Old Delhi to serve as India’s administrative centre. Its government is a constitutional republic that represents a highly diverse population consisting of thousands of ethnic groups and likely hundreds of languages. With roughly one-sixth of the world’s total population, India is the second most populous country, after China. It is known from archaeological evidence that a highly sophisticated urbanized culture—the Indus civilization—dominated the northwestern part of the subcontinent from about 2600 to 2000 bce. From that period on, India functioned as a virtually self-contained political and cultural arena, which gave rise to a distinctive tradition that was associated primarily with Hinduism, the roots of which can largely be traced to the Indus civilization. Other religions, notably Buddhism and Jainism, originated in India—though their presence there is now quite small—and throughout the centuries residents of the subcontinent developed a rich intellectual life in such fields as mathematics, astronomy, architecture, literature, music, and the fine arts. Throughout its history, India was intermittently disturbed by incursions from beyond its northern mountain wall. Especially important was the coming of Islam, brought from the northwest by Arab, Turkish, Persian, and other raiders beginning early in the 8th century ce. Eventually, some of those raiders stayed; by the 13th century much of the subcontinent was under Muslim rule, and the number of Muslims steadily increased. Only after the arrival of the Portuguese navigator Vasco da Gama in 1498 and the subsequent establishment of European maritime supremacy in the region did India become exposed to major external influences arriving by sea, a process that culminated in the decline of the ruling Muslim elite and absorption of the subcontinent within the British Empire. Direct administration by the British, which began in 1858, effected a political and economic unification of the subcontinent. When British rule came to an end in 1947, the subcontinent was partitioned along religious lines into two separate countries—India, with a majority of Hindus, and Pakistan, with a majority of Muslims; the eastern portion of Pakistan later split off to form Bangladesh. Many British institutions stayed in place (such as the parliamentary system of government); English continued to be a widely used lingua franca; and India remained within the Commonwealth. Hindi became the official language (and a number of other local languages achieved official status), while a vibrant English-language intelligentsia thrived. India remains one of the most ethnically diverse countries in the world. Apart from its many religions and sects, India is home to innumerable castes and tribes, as well as to more than a dozen major and hundreds of minor linguistic groups from several language families unrelated to one another. Religious minorities, including Muslims, Christians, Sikhs, Buddhists, and Jains, still account for a significant proportion of the population; collectively, their numbers exceed the populations of all countries except China. Earnest attempts have been made to instill a spirit of nationhood in so varied a population, but tensions between neighbouring groups have remained and at times have resulted in outbreaks of violence. Yet social legislation has done much to alleviate the disabilities previously suffered by formerly “untouchable” castes, tribal populations, women, and other traditionally disadvantaged segments of society. At independence, India was blessed with several leaders of world stature, most notably Mohandas (Mahatma) Gandhi and Jawaharlal Nehru, who were able to galvanize the masses at home and bring prestige to India abroad. The country has played an increasing role in global affairs. Contemporary India’s increasing physical prosperity and cultural dynamism—despite continued domestic challenges and economic inequality—are seen in its well-developed infrastructure and a highly diversified industrial base, in its pool of scientific and engineering personnel (one of the largest in the world), in the pace of its agricultural expansion, and in its rich and vibrant cultural exports of music, literature, and cinema. Though the country’s population remains largely rural, India has three of the most populous and cosmopolitan cities in the world—Mumbai (Bombay), Kolkata (Calcutta), and Delhi. Three other Indian cities—Bengaluru (Bangalore), Chennai (Madras), and Hyderabad—are among the world’s fastest-growing high-technology centres, and most of the world’s major information technology and software companies now have offices in India. Land India’s frontier, which is roughly one-third coastline, abuts six countries. It is bounded to the northwest by Pakistan, to the north by Nepal, China, and Bhutan; and to the east by Myanmar (Burma). Bangladesh to the east is surrounded by India to the north, east, and west. The island country of Sri Lanka is situated some 40 miles (65 km) off the southeast coast of India across the Palk Strait and Gulf of Mannar. The land of India—together with Bangladesh and most of Pakistan—forms a well-defined subcontinent, set off from the rest of Asia by the imposing northern mountain rampart of the Himalayas and by adjoining mountain ranges to the west and east. In area, India ranks as the seventh largest country in the world. Much of India’s territory lies within a large peninsula, surrounded by the Arabian Sea to the west and the Bay of Bengal to the east; Cape Comorin, the southernmost point of the Indian mainland, marks the dividing line between those two bodies of water. India has two union territories composed entirely of islands: Lakshadweep, in the Arabian Sea, and the Andaman and Nicobar Islands, which lie between the Bay of Bengal and the Andaman Sea. Relief It is now generally accepted that India’s geographic position, continental outline, and basic geologic structure resulted from a process of plate tectonics—the shifting of enormous, rigid crustal plates over the Earth’s underlying layer of molten material. India’s landmass, which forms the northwestern portion of the Indian-Australian Plate, began to drift slowly northward toward the much larger Eurasian Plate several hundred million years ago (after the former broke away from the ancient southern-hemispheric supercontinent known as Gondwana, or Gondwanaland). When the two finally collided (approximately 50 million years ago), the northern edge of the Indian-Australian Plate was thrust under the Eurasian Plate at a low angle. The collision reduced the speed of the oncoming plate, but the underthrusting, or subduction, of the plate has continued into contemporary times. The effects of the collision and continued subduction are numerous and extremely complicated. An important consequence, however, was the slicing off of crustal rock from the top of the underthrusting plate. Those slices were thrown back onto the northern edge of the Indian landmass and came to form much of the Himalayan mountain system. The new mountains—together with vast amounts of sediment eroded from them—were so heavy that the Indian-Australian Plate just south of the range was forced downward, creating a zone of crustal subsidence. Continued rapid erosion of the Himalayas added to the sediment accumulation, which was subsequently carried by mountain streams to fill the subsidence zone and cause it to sink more. India’s present-day relief features have been superimposed on three basic structural units: the Himalayas in the north, the Deccan (peninsular plateau region) in the south, and the Indo-Gangetic Plain (lying over the subsidence zone) between the two. Further information on the geology of India is found in the article Asia. The Himalayas of India The Himalayas (from the Sanskrit words hima, “snow,” and alaya, “abode”), the loftiest mountain system in the world, form the northern limit of India. That great, geologically young mountain arc is about 1,550 miles (2,500 km) long, stretching from the peak of Nanga Parbat (26,660 feet [8,126 metres]) in the Pakistani-administered portion of the Kashmir region to the Namcha Barwa peak in the Tibet Autonomous Region of China. Between those extremes the mountains fall across India, southern Tibet, Nepal, and Bhutan. The width of the system varies between 125 and 250 miles (200 and 400 km). Within India the Himalayas are divided into three longitudinal belts, called the Outer, Lesser, and Great Himalayas. At each extremity there is a great bend in the system’s alignment, from which a number of lower mountain ranges and hills spread out. Those in the west lie wholly within Pakistan and Afghanistan, while those to the east straddle India’s border with Myanmar (Burma). North of the Himalayas are the Plateau of Tibet and various Trans-Himalayan ranges, only a small part of which, in the Ladakh union territory (in the Indian-administered portion of Kashmir), are within the territorial limits of India. Because of the continued subduction of the Indian peninsula against the Eurasian Plate, the Himalayas and the associated eastern ranges remain tectonically active. As a result, the mountains are still rising, and earthquakes—often accompanied by landslides—are common. Several since 1900 have been devastating, including one in 1934 in what is now Bihar state that killed more than 10,000 people. In 2001 another tremor (the Bhuj earthquake), farther from the mountains, in Gujarat state, was less powerful but caused extensive damage, taking the lives of more than 20,000 people and leaving more than 500,000 homeless. Still others—notably the 2005 quake in Pakistani-administered Kashmir and the 2015 temblor in Nepal—principally affected those regions but also caused widespread damage and hundreds of deaths in adjacent parts of India. The relatively high frequency and wide distribution of earthquakes likewise have generated controversies about the safety and advisability of several hydroelectric and irrigation projects. The Outer Himalayas (the Siwalik Range) The southernmost of the three mountain belts are the Outer Himalayas, also called the Siwalik (or Shiwalik) Range. Crests in the Siwaliks, averaging from 3,000 to 5,000 feet (900 to 1,500 metres) in elevation, seldom exceed 6,500 feet (2,000 metres). The range narrows as it moves east and is hardly discernible beyond the Duars, a plains region in West Bengal state. Interspersed in the Siwaliks are heavily cultivated flat valleys (duns) with a high population density. To the south of the range is the Indo-Gangetic Plain. Weakly indurated, largely deforested, and subject to heavy rain and intense erosion, the Siwaliks provide much of the sediment transported onto the plain. The Lesser Himalayas To the north of the Siwaliks and separated from them by a fault zone, the Lesser Himalayas (also called the Lower or Middle Himalayas) rise to heights ranging from 11,900 to 15,100 feet (3,600 to 4,600 metres). Their ancient name is Himachal (Sanskrit: hima, “snow,” and acal, “mountain”). The mountains are composed of both ancient crystalline and geologically young rocks, sometimes in a reversed stratigraphic sequence because of thrust faulting. The Lesser Himalayas are traversed by numerous deep gorges formed by swift-flowing streams (some of them older than the mountains themselves), which are fed by glaciers and snowfields to the north. The Great Himalayas The northernmost Great, or Higher, Himalayas (in ancient times, the Himadri), with crests generally above 16,000 feet (4,900 metres) in elevation, are composed of ancient crystalline rocks and old marine sedimentary formations. Between the Great and Lesser Himalayas are several fertile longitudinal vales; in India the largest is the Vale of Kashmir, an ancient lake basin with an area of about 1,700 square miles (4,400 square km). The Great Himalayas, ranging from 30 to 45 miles (50 to 75 km) wide, include some of the world’s highest peaks. The highest in the range, Mount Everest (at 29,035 feet [8,850 metres]; see Researcher’s Note: Height of Mount Everest), is on the China-Nepal border, but India also has many lofty peaks. Notable among those is Kanchenjunga (28,169 feet [8,586 metres]) on the border of Nepal and the state of Sikkim, which is the world’s third tallest peak and India’s highest point. Other high mountains in India include Nanda Devi (25,646 feet [7,817 metres]), Kamet (25,446 feet [7,755 metres]), and Trisul (23,359 feet [7,120]) in Uttarakhand. The Great Himalayas lie mostly above the line of perpetual snow and thus contain most of the Himalayan glaciers. More …. Source: https://www.britannica.com/place/India

2023/01/26

Australian Union Day

Australia, the smallest continent and one of the largest countries on Earth, lying between the Pacific and Indian oceans in the Southern Hemisphere. Australia’s capital is Canberra, located in the southeast between the larger and more important economic and cultural centres of Sydney and Melbourne. The Australian mainland extends from west to east for nearly 2,500 miles (4,000 km) and from Cape York Peninsula in the northeast to Wilsons Promontory in the southeast for nearly 2,000 miles (3,200 km). To the south, Australian jurisdiction extends a further 310 miles (500 km) to the southern extremity of the island of Tasmania, and in the north it extends to the southern shores of Papua New Guinea. Australia is separated from Indonesia to the northwest by the Timor and Arafura seas, from Papua New Guinea to the northeast by the Coral Sea and the Torres Strait, from the Coral Sea Islands Territory by the Great Barrier Reef, from New Zealand to the southeast by the Tasman Sea, and from Antarctica in the far south by the Indian Ocean. Australia has been called “the Oldest Continent,” “the Last of Lands,” and “the Last Frontier.” Those descriptions typify the world’s fascination with Australia, but they are somewhat unsatisfactory. In simple physical terms, the age of much of the continent is certainly impressive—most of the rocks providing the foundation of Australian landforms were formed during Precambrian and Paleozoic time (some 4.6 billion to 252 million years ago)—but the ages of the cores of all the continents are approximately the same. On the other hand, whereas the landscape history of extensive areas in Europe and North America has been profoundly influenced by events and processes that occurred since late in the last Ice Age—roughly the past 25,000 years—in Australia scientists use a more extensive timescale that takes into account the great antiquity of the continent’s landscape. Australia is the last of lands only in the sense that it was the last continent, apart from Antarctica, to be explored by Europeans. At least 60,000 years before European explorers sailed into the South Pacific, the first Aboriginal explorers had arrived from Asia, and by 20,000 years ago they had spread throughout the mainland and its chief island outlier, Tasmania. When Captain Arthur Phillip of the British Royal Navy landed with the First Fleet at Botany Bay in 1788, there may have been between 250,000 and 500,000 Aboriginals, though some estimates are much higher. Largely nomadic hunters and gatherers, the Aboriginals had already transformed the primeval landscape, principally by the use of fire, and, contrary to common European perceptions, they had established robust, semipermanent settlements in well-favoured localities. The American-style concept of a national “frontier” moving outward along a line of settlement is also inappropriate. There was, rather, a series of comparatively independent expansions from the margins of the various colonies, which were not joined in an independent federated union until 1901. Frontier metaphors were long employed to suggest the existence of yet another extension of Europe and especially of an outpost of Anglo-Celtic culture in the distant “antipodes.” The most striking characteristics of the vast country are its global isolation, its low relief, and the aridity of much of its surface. If, like the English novelist D.H. Lawrence, visitors from the Northern Hemisphere are at first overwhelmed by “the vast, uninhabited land and by the grey charred bush…so phantom-like, so ghostly, with its tall, pale trees and many dead trees, like corpses,” they should remember that to Australians the bush—that sparsely populated Inland or Outback beyond the Great Dividing Range of mountains running along the Pacific coast and separating it from the cities in the east—is familiar and evokes nostalgia. It still retains some of the mystical quality it had for the first explorers searching for inland seas and great rivers, and it remains a symbol of Australia’s strength and independence; the Outback poem by A.B. (“Banjo”) Paterson, “Waltzing Matilda,” is the unofficial national anthem of Australia known the world over. Australia’s isolation from other continents explains much of the singularity of its plant and animal life. Its unique flora and fauna include hundreds of kinds of eucalyptus trees and the only egg-laying mammals on Earth, the platypus and echidna. Other plants and animals associated with Australia are various acacias (Acacia pycnantha [golden wattle] is the national flower) and dingoes, kangaroos, koalas, and kookaburras. The Great Barrier Reef, off the east coast of Queensland, is the greatest mass of coral in the world and one of the world’s foremost tourist attractions. The country’s low relief results from the long and extensive erosive action of the forces of wind, rain, and the heat of the sun during the great periods of geologic time when the continental mass was elevated well above sea level. Isolation is also a pronounced characteristic of much of the social landscape beyond the large coastal cities. But an equally significant feature of modern Australian society is the representation of a broad spectrum of cultures drawn from many lands, a development stemming from immigration that is transforming the strong Anglo-Celtic orientation of Australian culture. Assimilation, of course, is seldom a quick and easy process, and minority rights, multiculturalism, and race-related issues have played a large part in contemporary Australian politics. In the late 1990s these issues sparked a conservative backlash. Australia has a federal form of government, with a national government for the Commonwealth of Australia and individual state governments (those of New South Wales, Victoria, Queensland, South Australia, Western Australia, and Tasmania). Each state has a constitution, and its government exercises a limited degree of sovereignty. There are also two internal territories: Northern Territory, established as a self-governing territory in 1978, and the Australian Capital Territory (including the city of Canberra), which attained self-governing status in 1988. The federal authorities govern the external territories of Norfolk Island, the Cocos (Keeling) Islands, Christmas Island, Ashmore and Cartier islands, the Coral Sea Islands, and Heard Island and McDonald Islands and claim the Australian Antarctic Territory, an area larger than Australia itself. Papua New Guinea, formerly an Australian external territory, gained its independence in 1975. Historically part of the British Empire and now a member of the Commonwealth, Australia is a relatively prosperous independent country. Australians are in many respects fortunate in that they do not share their continent—which is only a little smaller than the United States—with any other country. Extremely remote from their traditional allies and trading partners—it is some 12,000 miles (19,000 km) from Australia to Great Britain via the Indian Ocean and the Suez Canal and about 7,000 miles (11,000 km) across the Pacific Ocean to the west coast of the United States—Australians have become more interested in the proximity of huge potential markets in Asia and in the highly competitive industrialized economies of China, Japan, South Korea, and Taiwan. Australia, the continent and the country, may have been quite isolated at the beginning of the 20th century, but it entered the 21st century a culturally diverse land brimming with confidence, an attitude encouraged by the worldwide fascination with the land “Down Under” and demonstrated when Sydney hosted the 2000 Olympic Games. Geologic history The earliest known manifestations of the geologic record of the Australian continent are 4.4-billion-year-old detrital grains of zircon in metasedimentary rocks that were deposited from 3.7 to 3.3 billion years ago. Based on that and other findings, the Precambrian rocks in Australia have been determined to range in age from about 3.7 billion to 541 million years (i.e., to the end of Precambrian time). They are succeeded by rocks of the Paleozoic Era, which extended to about 252 million years ago; of the Mesozoic Era, which lasted until about 66 million years ago; and of the Cenozoic Era, the past 66 million years. For millions of years Australia was part of the supercontinent of Pangaea and subsequently its southern segment, Gondwanaland (or Gondwana). Its separate existence was finally assured by the severing of the last connection between Tasmania and Antarctica, but it has been drifting toward the Southeast Asian landmass. As a continent, Australia thus encompasses two extremes: on the one hand, it contains the oldest known earth material while, on the other, it has stood as a free continent only since about 35 million years ago and is in the process—in terms of geologic time—of merging with Asia, so that its life span as a continent will be of relatively short duration. (See also geochronology: Geologic history of the Earth.) General considerations - Tectonic framework The map of the structural features of Australia and the surrounding region shows the distribution of the main tectonic units. The primary distinction is between the plates of oceanic lithosphere, generated within the past 160 million years by seafloor spreading at the oceanic ridges, and the continental lithosphere, accumulated over the past 4 billion years. (The lithosphere is the outer rock shell of the Earth that consists of the crust and the uppermost portion of the underlying mantle; see plate tectonics.) The largest area of oldest rocks is the Western Shield, comprising the western half of the continent, which has been eroded to a low relief. The youngest rocks are found in the growing fold belt of the Banda arcs and in New Guinea at the boundary between the Indian-Australian plate and the Eurasian and Pacific plates. The modern fold belts are separated from Australia by a “moat” (the Timor Trough) and a wide shelf (the Timor and Arafura seas). The northern half of the Australian margin is completed by the North West Shelf and the Exmouth Plateau on the west and by the Great Barrier Reef and the Queensland Plateau on the east. Precambrian rocks occupy three tectonic environments. The first is in shields, such as the Yilgarn and Pilbara blocks of the Western Shield, enclosed by later orogenic (mountain) belts. The second is as the basement to a younger cover of Phanerozoic sediment (deposited during the past 541 million years); for example, all the sedimentary basins west of the Tasman Line are underlain by Precambrian basement. The third is as relicts in younger orogenic belts, as in the Georgetown Inlier of northern Queensland and in the western half of Tasmania. Rocks of Paleozoic age occur either in flat-lying sedimentary basins, such as the Canning Basin, or within belts, such as the east–west-trending Amadeus Transverse Zone and north-trending Tasman Fold Belt. Mesozoic and Cenozoic rocks occur in widely distributed (though poorly exposed) basins onshore (the Great Artesian Basin in the eastern centre). Offshore they occur on the western, southern, and eastern margins, including beneath Bass Strait, which separates Australia from Tasmania, and to the north in the submerged ground between the Banda arcs/New Guinea and the mainland. More … Source: https://www.britannica.com/place/Australia

2023/01/26

Paraty

A cidade histórica de Paraty, no litoral sul do estado do Rio de Janeiro, está situada entre a montanha e o mar, em um cenário de grande beleza natural. Fundada pelos portugueses em 1667, Paraty tornou-se o ponto de partida das trilhas que levavam às minas de ouro de Minas Gerais. A riqueza de Paraty foi ampliada com o estabelecimento de cerca de 250 engenhos de açúcar e de 150 destilarias de aguardente durante o ciclo econômico da cana-de-açúcar, entre os séculos XVII e XVIII.

2023/01/25