翻訳と辞書
Words near each other
・ Gawk
・ Gawkadal massacre
・ Gawker
・ Gawker Media
・ Gawki
・ Gawlamten
・ Gawler (disambiguation)
・ Gawler (surname)
・ Gawler Aerodrome
・ Gawler and District College
・ Gawler Belt, South Australia
・ Gawler bypass road
・ Gawler Central railway line
・ Gawler Central railway station
・ Gawler Chain Trail
Gawler Craton
・ Gawler East, South Australia
・ Gawler Football Club
・ Gawler Oval railway station
・ Gawler Racecourse railway station
・ Gawler railway station
・ Gawler Ranges
・ Gawler Ranges National Park
・ Gawler River
・ Gawler River, South Australia
・ Gawler SC
・ Gawler South, South Australia
・ Gawler West, South Australia
・ Gawler, South Australia
・ Gawley


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Gawler Craton : ウィキペディア英語版
Gawler Craton

The Gawler Craton covers approximately 440,000 square kilometres of central South Australia. Its Precambrian crystalline basement crustal block was cratonised ca. 1550-1450 Ma. Prior to 1550 Ma the craton comprised a number of active Proterozoic orogenic belts extending back in time to at least 2450 Ma.
The Craton can be subdivided into a number of tectonic subdomains on the basis of structure and tectonostratigraphic history.〔(Tectonic Map of Gawler Craton ) Geosurveys Australia Pty Ltd.〕 The south-central Eyre Peninsula straddles the boundary between the Archaean to early Palaeoproterozoic Coulta Subdomain and the Cleve Subdomain, a Palaeoproterozoic orogenic belt ("mobile zone") probably representing a shelf or basinal depository for the Hutchison Group (ca. 1900-1845 Ma) prior to its deformation during the Kimban Orogeny (ca. 1845-1710 Ma). On northeastern Eyre Peninsula, the Cleve Subdomain is bounded by the slightly younger Moonta Subdomain which is characterised by less intensely deformed metamorphosed acid volcanics and sediments ranging from the Myola Volcanics and Moonta Porphyry to the Moonabie Formation and Wandearah Metasiltstone.
Subsequent deformation on the craton has been largely epeirogenic forming shallow fault-bounded intracontinental depressions represented by Cainozoic basins, the southern continental margin and Spencer Gulf.
== Physiography ==
The Gawler Craton, or Gawler Block, is a distinct physiographic province of the larger West Australian Shield division. It includes the smaller Stuart Range Basin and Pimba Platform physiographic sections.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Gawler Craton」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.