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A three-layer horizon of silicate-rich rock exposed in the Bjørntvet limestone quarry in Porsgrunn has been identified as a metabentonite. Its total thickness is 75 cm, it has a dark green-grey...
There is no widely recognized chemical classification of sedimentary rocks. The geochemical classification of sedimentary rocks utilizes features that can be observed in hand specimens or in thin sect...
The Ringerike Group is a lower Old Red Sandstone fluvial sequence that forms part of the Late Silurian foreland basin succession of the Ringerike Group, Oslo Region, southern Norway. The Ringerike Gro...
The Ringerike Group is a terrigenous succession of Upper Silurian sediments that outcrops in a number of areas within the Oslo Region of southern Norway. Despite being the focus of a number of studies...
The myodocope ostracod Entomozoe aff. Entomozoe tuberosa (Jones 1861) has been identified from the Silurian Telychian Stage, Llandovery Series of Severnaya Zemlya, Russia. Entomozoe was previously kno...
Large bodies of trondhjemite, up to 200 km2 in size and locally coexisting with diorite and gabbro, represent an important plutonic component of the Köli Nappes in the Trondheim Region. Zircon (a...
期刊信息 篇名 Silurian seismites in Hanxia, Yumen, North Qilian Mountains, and their tectonic significance. 语种 英文 撰写或编译 作者 Du Yuansheng., Gong Shuyun., Han Xin, ea al. 第一作者单位 刊物名称 Acta Geologica Sinica 页面 2...

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