Results 31 to 40 of about 5,124,862 (215)
Shiyou shiyan dizhi, 2021 The Lower Cambrian Niutitang Formation shale is an extremely crucial marine source rock developed at the mid-upper Yangtze block of China. To clarify the paleoenvironment and conditions which are responsible for organic matter enrichment of the Niutitang
Qingmin ZHU +6 more
doaj +1 more source
Camptostroma, a Lower Cambrian floating hydrozoan
Proceedings of the United States National Museum, 1933 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +3 more sources
Lipid taphonomy in the Proterozoic and the effect of microbial mats on biomarker preservation [PDF]
, 2012 The pre-Ediacaran biomarker record has several characteristic features that distinguish it from its Phanerozoic counterpart, including high concentrations of unresolved complex mixture (UCM), low concentrations or absence of eukaryotic steranes, and a ...
Brocks, Jochen J. +5 more
core +1 more source
Geologica Acta, 2003 The genus Tonkinella is a typical polimeroid trilobite in lower Middle Cambrian rocks from Vietnam, Canada, U.S.A., India, Korea, Siberia, China and Argentina. It has recently been found in the Mediterranean region (Iberian Chain, northeastern Spain). In
Rodolfo Gozalo Gutiérrez +4 more
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Cambrian infill sequence and sedimentary evolution in southwestern Tarim Basin [PDF]
Youqicang pingjia yu kaifaIn the southwestern Tarim Basin, studies on the paleo-uplift and shelf divergence have focused on the sedimentary evolution and sequence filling during the Cambrian period. This research used zircon U-Pb dating and well-seismic technologies. The findings
LUO Shaohui,WANG Rongying,YUE Yong,LI Bin,WEI Huadong,JIN Xianmei,JIANG Zhongzheng,CAO Yang
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Energy GeoscienceDue to the considerable depth of the salt layers and the lack of calibration by exploratory drilling, the interpretation of the Middle and Lower Cambrian salt formations in the central Tarim Basin poses a challenge.
Qing Bian, Jibiao Zhang, Cheng Huang
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Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 more
wiley +1 more source
Shiyou shiyan dizhi, 2023 The Lower Cambrian Qiongzhusi Formation in Sichuan Basin and on its periphery is rich in shale gas resources, and it has become one of the important shale gas development intervals in Sichuan Basin.
Liang XIONG +9 more
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The Lower Cambrian of the southern Montagne Noire
Annales de la Société Géologique du Nord, 2001 La sédimentation du Cambrien inférieur dans le versant méridional de la Montagne Noire comprend une succession inférieure (avant l’apparition des premiers trilobites) ou Formation Marcory, et une succession supérieure riche en carbonates (Formations de Pardailhan, Lastours et Pont de Poussarou).
Àlvaro, José Javier +2 more
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The SPICE carbon isotope excursion in Siberia: a combined study of the upper Middle Cambrian-lowermost Ordovician Kulyumbe River section, northwestern Siberian Platform [PDF]
, 2008 An integrated, high-resolution chemostratigraphic (C, O and Sr isotopes) and magnetostratigraphic study through the upper Middle Cambrian–lowermost Ordovician shallowmarine carbonates of the northwestern margin of the Siberian Platform is reported. The
Gallet, Y +9 more
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