Results 91 to 100 of about 1,764 (217)

Comparative Analysis of Shale Gas Enrichment and High Yield Geological Conditions of Wufeng–Longmaxi Formation and Qiongzhusi Formation in Southern Sichuan Basin

Geofluids, Volume 2024, Issue 1, 2024.
Wufeng–Longmaxi Formation and Qiongzhusi Formation are the significant shale gas exploration strata in China. The former has made a major breakthrough, and the exploration of the latter is restricted. At present, it shows good exploration potential in the Qiongzhusi Formation.
Majia Zheng, Hui Long, Ya Wu, Zhipeng Ou, Wenlei Liu, Dandan Wang, Wenyi Chen, Zhenxue Jiang, Xianglu Tang, Naser Golsanami   +9 more
wiley   +1 more source

New insights on the Hirnantian palynostratigraphy of the rio Ceira section, Buçaco, Portugal [PDF]

, 2014
The Lower Palaeozoic successions of Portugal are well represented in the Central Iberian Zone (Cll), one of the main tectonostratigraphic domains of the Iberian Massif.
Fernandes, Paulo, Lopes, Gilda, Pereira, Zélia, Piçarra, J. M., Sequeira, A. J. D., Vaz, Nuno   +5 more
core  

Early Palaeozoic ocean anoxia and global warming driven by the evolution of shallow burrowing [PDF]

, 2018
The evolution of burrowing animals forms a defining event in the history of the Earth. It has been hypothesised that the expansion of seafloor burrowing during the Palaeozoic altered the biogeochemistry of the oceans and atmosphere.
AW Dale, BC Gill, BP Boudreau, BU Haq, C Zou, CK Thompson, CP Slomp, CT Edwards, D Archer, D McIlroy, DE Canfield, DE Canfield, DE Canfield, DH Erwin, DJ Bottjer, DJ Burdige, E Ingall, E Kristensen, E Kristensen, EA Sperling, ED Goldberg, ED Ingall, FJa Nascimento, FJR Meysman, G Hulthe, GA Shields, H Kimura, IJ Glasspool, JA Trotter, LG Herringshaw, LG Tarhan, LM Och, LR Kump, MD Brasier, ME Hines, MR Saltzman, MR Saltzman, MW Wallace, N Wu, NM Bergman, P Lecroart, PAE Pogge von Strandmann, R Guilbaud, R Raiswell, RA Berner, RA Berner, RA Berner, RA Boyle, RC Aller, RC Aller, RJ Diaz, RK Bambach, RN Glud, S Papaspyrou, S Velde van de, SK Sahoo, T Goldberg, T Goldberg, TM Lenton, TM Lenton, TM Lenton, TM Lenton, TS Bianchi, X Chen   +63 more
core   +2 more sources

High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event [PDF]

Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Deynoux, M., Ghienne, J.F., Underwood, Charlie J.   +2 more
core  

Phanerozoic organic-carbon-rich marine sediments: Overview and future research challenges [PDF]

, 2009
\u201cOne of the major obsessions of many early workers, to the mid-1900s, was the application of uniformitarian principles to depositional models for black shales\u201c (Arthur and Sageman, 1994).The purpose of this overview of organic-carbon(OC)-rich ...
Ferretti, Annalisa, Meyer, Phil A., Negri, Alessandra, Wagner, Thomas   +3 more
core   +1 more source

A Lower Silurian (Aeronian) radiolarian assemblage from black cherts of the Armorican Massif (France)

, 2014
International audienceThe Chalonnes-sur-Loire outcrop is the most complete Llandovery section in the Ligerian domain (Armorican Massif, NW France); it displays a ca.
Dabard, Marie-Pierre, Danelian, Taniel, Ghienne, Jean-François, Tetard, Martin   +3 more
core   +4 more sources

Astronomical control on upper ordovician – lower silurian organic matter enrichment in South China

Frontiers in Earth Science
Astronomical forcing governed Late Ordovician–Early Silurian climate dynamics, yet high-resolution Astronomical Time Scales (ATS) and organic enrichment mechanisms during the end-Ordovician extinction remain poorly constrained.
Jinjie Yong, Shaoyong Hu, Jie He, Zhicheng Liu, Mengtian Zheng, Peng Luo, Xin Liu, Wei Dong   +7 more
doaj   +1 more source

Stratigraphical framework for the Ordovician and Silurian sedimentary strata of northern England and the Isle of Man [PDF]

, 2012
This report provides a comprehensive review of the lithostratigraphy of the Ordovician and Silurian sedimentary, excluding volcaniclastic, strata within the Lake District Lower Palaeozoic Inlier, the nearby northern England inliers of Cross Fell ...
Millward, D., Stone, P.
core  

Brachiopods from the Hirnantian Stage (Ordovician–Silurian) at Percé, Quebec

, 1976
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Lespérance, Pierre Jacques, Sheehan, P M   +1 more
openaire   +2 more sources

Geology of the Llanidloes district : British Geological Survey Sheet 164 [PDF]

, 2016
This Sheet Explanation provides a summary of the geology of the district covered by Geological 1:50 000 Series Map Sheet 164 (Llanidloes), published in 2010 as a Bedrock and Superficial Deposits edition.
Aspden, J.A., Burt, C.E., Davies, J.R., Hall, M., Jones, N.S., Leslie, A.B., Lusty, P.A.J., Wilby, P.R., Wilson, D.   +8 more
core