The Sperrgebiet Domain, Aurus Mountains, SW Namibia: A ∼2020-850 Ma window within the Pan-African Gariep Orogen
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- 作者：Robert J. Thomasa ; bthomas@geoscience.org.za" class="auth_mail" title="E-mail the corresponding author ; Paul H. Maceya ; Christopher Spencerb ; Taufeeq Dhansaya ; Johann F.A. Dienerc ; Christopher W. Lamberta ; Dirk Freid ; Anna Ngunoe
- 关键词：Namibia ; Sperrgebiet geochronology ; Namaqua ; Pan-African
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：286
- 期：Complete
- 页码：35-58
- 全文大小：13497 K
文摘
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Old, ∼2020 Ma Ga amphibolite facies Sperrgebiet Arc domain discovered.
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Provided detritus for later ∼1.9 Ga Richtersveld Arc and younger rocks.
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Post-Arc sedimentary sequence (<1700 Ma; Aurus Group) identified.
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∼850 Ma meta-volcanic gneisses equated with Richtersveld Igneous Complex.
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Pervasive fabrics are Pan-African in age formed during major sinistral transpressive phase of Gariep Orogeny.