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Great Barrier Reef

Shahinur Rahman Shajeeb
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1K+Downloads
2.5MBSize
Android Version Icon4.0.3 - 4.0.4+
Android Version
1.0(03-12-2020)
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Description of Great Barrier Reef

The Great Barrier Reef is a distinct feature of the East Australian Cordillera division. It reaches from Torres Strait (between Bramble Cay, its northernmost island, and the south coast of Papua New Guinea) in the north to the unnamed passage between Lady Elliot Island (its southernmost island) and Fraser Island in the south. Lady Elliot Island is located 1,915 km (1,190 mi) southeast of Bramble Cay as the crow flies. It includes the smaller Murray Islands.

The plate tectonic theory indicates Australia has moved northwards at a rate of 7 cm (2.8 in) per year, starting during the Cenozoic Eastern Australia experienced a period of tectonic uplift, which moved the drainage divide in Queensland 400 km (250 mi) inland. Also during this time, Queensland experienced volcanic eruptions leading to central and shield volcanoes and basalt flows. Some of these became high islands. 26 After the Coral Sea Basin formed, coral reefs began to grow in the Basin, but until about 25 million years ago, northern Queensland was still in temperate waters south of the tropics—too cool to support coral growth. 27 The Great Barrier Reef's development history is complex; after Queensland drifted into tropical waters, it was largely influenced by reef growth and decline as sea level changed. 27–28

Reefs can increase in diameter by 1 to 3 centimetres (0.39 to 1.18 in) per year, and grow vertically anywhere from 1 to 25 cm (0.39 to 9.84 in) per year; however, they grow only above a depth of 150 metres (490 ft) due to their need for sunlight, and cannot grow above sea level. When Queensland edged into tropical waters 24 million years ago, some coral grew, 29 but a sedimentation regime quickly developed with erosion of the Great Dividing Range; creating river deltas, oozes and turbidites, unsuitable conditions for coral growth. 10 million years ago, the sea level significantly lowered, which further enabled sedimentation. The reef's substrate may have needed to build up from the sediment until its edge was too far away for suspended sediments to inhibit coral growth. In addition, approximately 400,000 years ago there was a particularly warm interglacial period with higher sea levels and a 4 °C (7 °F) water temperature change.

The land that formed the substrate of the current Great Barrier Reef was a coastal plain formed from the eroded sediments of the Great Dividing Range with some larger hills (most of which were themselves remnants of older reefs or, in rare cases, volcanoes 18 The Reef Research Centre, a Cooperative Research Centre, has found coral 'skeleton' deposits that date back half a million years. The Great Barrier Reef Marine Park Authority (GBRMPA) considers the earliest evidence of complete reef structures to have been 600,000 years ago. According to the GBRMPA, the current, living reef structure is believed to have begun growing on the older platform about 20,000 years ago. The Australian Institute of Marine Science agrees, placing the beginning of the growth of the current reef at the time of the Last Glacial Maximum. At around that time, sea level was 120 metres (390 ft) lower than it is today.

From 20,000 years ago until 6,000 years ago, sea level rose steadily around the world.


Great Barrier Reef - Version 1.0

(03-12-2020)

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Great Barrier Reef - APK Information

APK Version: 1.0Package: com.sportzoon.greatbarrierreef
Android compatability: 4.0.3 - 4.0.4+ (Ice Cream Sandwich)
Developer:Shahinur Rahman ShajeebPrivacy Policy:https://studytrainingprivacypolicy.blogspot.com/2019/07/great-barrier-reef.htmlPermissions:2
Name: Great Barrier ReefSize: 2.5 MBDownloads: 0Version : 1.0Release Date: 2020-12-03 03:19:09Min Screen: SMALLSupported CPU:
Package ID: com.sportzoon.greatbarrierreefSHA1 Signature: 99:67:20:8B:00:7E:C4:05:A1:18:E9:A1:9E:9A:B4:A9:32:6D:75:77Developer (CN): AndroidOrganization (O): Google Inc.Local (L): Mountain ViewCountry (C): USState/City (ST): California

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