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Gondwana Research
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Published on May 1, 2019in Gondwana Research 5.66
Ni Tao2
Estimated H-index: 2
,
Zheng-Xiang Li70
Estimated H-index: 70
+ 9 AuthorsLi-Ping Liu2
Estimated H-index: 2
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Published on Sep 1, 2019in Gondwana Research 5.66
Donald J. DePaolo84
Estimated H-index: 84
,
T. Mark Harrison77
Estimated H-index: 77
+ 4 AuthorsXuanxue Mo33
Estimated H-index: 33
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Published on Sep 1, 2019in Gondwana Research 5.66
Charitra Jain2
Estimated H-index: 2
(ETH Zurich),
A. Rozel7
Estimated H-index: 7
(ETH Zurich)
+ 2 AuthorsTaras V. Gerya58
Estimated H-index: 58
(ETH Zurich)
Abstract The majority of continental crust formed during the hotter Archean was composed of Tonalite-Trondhjemite-Granodiorite (TTG) rocks. In contrast to the present-day loci of crust formation around subduction zones and intra-plate tectonic settings, TTGs are formed when hydrated basalt melts at garnet-amphibolite, granulite or eclogite facies conditions. Generating continental crust requires a two step differentiation process. Basaltic magma is extracted from the pyrolytic mantle, is hydrate...
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Published on Sep 1, 2019in Gondwana Research 5.66
Chaolei Yan2
Estimated H-index: 2
,
Liangshu Shu41
Estimated H-index: 41
+ 2 AuthorsRenbo Huang
The South China Block was built up by the assembly of the Yangtze and Cathaysia blocks along the Neoproterozoic Jiangnan Orogenic Belt. The timing of the Jiangnan Orogeny remains controversial. The widespread orogeny–related Neoproterozoic angular unconformity that separates the underlying folded Sibao (ca.1000–820 Ma) and overlying Danzhou (ca.800–720 Ma) Groups was investigated. Six sedimentary samples, below and above the unconformity in three distal localities (Fanjingshan, Madiyi, and Sibao...
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Published on May 1, 2019in Gondwana Research 5.66
Fariba Kohanpour1
Estimated H-index: 1
,
Christopher L. Kirkland33
Estimated H-index: 33
+ 4 AuthorsMargaux Le Vaillant10
Estimated H-index: 10
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Published on Sep 1, 2019in Gondwana Research 5.66
Guozheng Sun3
Estimated H-index: 3
(Peking University),
LIUShuwen36
Estimated H-index: 36
(Peking University)
+ 3 AuthorsRongrong Guo16
Estimated H-index: 16
(Northeastern University)
Abstract The thickness and geothermal gradient of Archean continental crust are critical factors for understanding the geodynamic processes in Earth's early continental crust. Archean tonalite-trondhjemite-granodiorite (TTG) gneisses provide one of the potential indicators of paleo-crustal thickness and geothermal gradient because crust-derived TTG melts are generally thought to originate from partial melting of mafic rocks at the crustal root. In the Western Shandong Province (WSP) of the North...
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Published on Sep 1, 2019in Gondwana Research 5.66
Matthias Alberti7
Estimated H-index: 7
(University of Kiel),
Agnieszka Arabas2
Estimated H-index: 2
(Polish Academy of Sciences)
+ 2 AuthorsPiotr Ziółkowski1
Estimated H-index: 1
(University of Warsaw)
Abstract Stable isotope (δ 18 O, δ 13 C) analyses were performed on well preserved belemnites, oysters, and rhynchonellid brachiopods from the Middle to Upper Jurassic of the Morondava Basin in southern Madagascar. Both brachiopods and oysters indicate similar average temperatures of 18.7 to 19.3 °C in the Early Callovian, followed by a temperature decrease towards the Middle Oxfordian (13.9 °C) and a minimum in the Early Kimmeridgian (12.3 °C). In contrast, belemnites from the Oxfordian show lo...
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