Results 181 to 190 of about 318,975 (205)

Supracrustal Rocks, Polymetamorphism, and Evolution of the SW Greenland Archean Gneiss Complex

1984
The gneiss complex of southern West Greenland contains the world’s oldest well characterized rocks, the ~3800 Ma Isua Supracrustal Sequence of metavolcanic amphibolite, and chemical and clastic metasediment, for which there is no known basement. Stratigraphic relationships suggest a broad similarity to upper portions of some Archean greenstone belts ...
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Geochemistry and Tectonic Setting of Early Proterozoic Supracrustal Rocks in the Southwestern United States

The Journal of Geology, 1986
A revision of previous models of Proterozoic crustal accretion in the southwestern U.S. is presented, based on the more extensive data now available. Five Early Proterozoic predominantly volcanic supracrustal terranes are recognized, with ages of 1760-1800 Ma, 1730-1740 Ma, 1720 Ma, 1680-1700 Ma, and 1650 Ma. In some areas they are overlain by a sixth,
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Supracrustal Rocks of the Lithuanian-Belarus Belt

2022
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Supracrustal Rocks of the West Lithuanian Domain

2022
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The origin of the early Proterozoic supracrustal rocks in the Garpenberg district, south central Sweden

Geologiska Föreningen i Stockholm Förhandlingar, 1984
Abstract The early Proterozoic supracrustal sequence in the Garpenberg district, south central Sweden, consists mainly of quartz-feldspar gneissses (‘leptites’) and subordinate amphibolites, quartz gneisses, mica schists, skarns and marbles. Stratabound iron and sulfide deposits are intercalated within this sequence.
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A review on the research progress of the Early Precambrian supracrustal rocks in the Jiaobei Massif

Acta Petrologica Sinica, 2023
Lei ZHAO, RuCheng ZHANG, WeiQing SUN, Yi ZOU, MingGuo ZHAI   +4 more
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Metamorphic Evolution of Daqingshan Supracrustal Rocks and Garnet Granite From the North China Craton: Constraints From Phase Equilibria Modelling, Geochemistry, and SHRIMP U–Pb Geochronology

Gondwana Research, 2021
Zhonghai Zhao, Qiang Shi, Zhongyuan Xu
exaly  

The First Identification of Early Paleoproterozoic (2.46–2.38 Ga) Supracrustal Rocks in the Daqingshan Area, Northwestern North China Craton: Geology, Geochemistry and SHRIMP U-Pb Dating

Precambrian Research, 2022
Simon A. Wilde, Chunyan Dong, Mingzhu Ma
exaly  

Occurrence and Chemical Composition of the Eoarchean Carbonate Rocks of the Nulliak Supracrustal Rocks in the Saglek Block of Northeastern Labrador, Canada

Island Arc, 2021
Shogo Aoki, Tsuyoshi Komiya, Akira Ishikawa   +2 more
exaly  

The origin of metacarbonate rocks in the Archaean Isua supracrustal belt, West Greenland

American Journal of Science, 1996
N. M. Rose, M. T. Rosing, D. Bridgwater
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