Results 31 to 40 of about 79,295 (351)

Identification of carbonate sedimentary facies from well logs with machine learning

Petroleum Research
Sedimentary facies identification is critical for carbonate oil and gas reservoir development. The traditional method of sedimentary facies identification not only be affected by the engineer's experience but also takes a long time. Identifying carbonate
Xianmu Hou, Peiqing Lian, Jiuyu Zhao, Yun Zai, Weiyao Zhu, Fuyong Wang   +5 more
doaj   +1 more source

Seawater redox variations during the deposition of the Kimmeridge Clay Formation, United Kingdom (Upper Jurassic): evidence from molybdenum isotopes and trace metal ratios [PDF]

, 2010
The Kimmeridge Clay Formation (KCF) and its equivalents worldwide represent one of the most prolonged periods of organic carbon accumulation of the Mesozoic.
Abbink, Ahmadi, Al-Suwaidi, Algeo, Algeo, Algeo, Anbar, Angela L. Coe, Anthony S. Cohen, Archer, Arnold, Barling, Bertrand, Chambers, Christopher R. Pearce, Cohen, Cohen, Cox, Crusius, Crusius, Demaison, Dunn, Emerson, Glennie, Gradstein, Hallam, Herbin, Hesselbo, Hesselbo, Huang, Jenkyns, Jenkyns, Jenkyns, Jenkyns, Kemp, Lallier-Vergès, Lallier-Vergès, Lees, Lees, Ling, Matthews, McArthur, McManus, Miller, Morford, Morgans-Bell, Neubert, Oschmann, Oschmann, Padden, Pearce, Pearce, Pearson, Piper, Poulson, Pálfy, Raiswell, Raiswell, Saelen, Schouten, Siebert, Siebert, Sinninghe Damsté, Taylor, Tossell, Tribovillard, Tribovillard, Tribovillard, Tribovillard, Tyson, Tyson, Tyson, van Dongen, van Kaam-Peters, van Kaam-Peters, Weedon, Weedon, Weissert, Wignall, Wignall, Wignall, Ziegler   +81 more
core   +1 more source

Detrital events within pelagic deposits of the Umbria-Marche basin (Northern Apennines, Italy). Further evidence of Early Cretaceous tectonics [PDF]

, 2016
Re-sedimented deposits characterize different stratigraphical intervals in the pelagic successions of the Umbria-Marche-Sabina Domain (Central and Northern Apennines, Italy).
CIPRIANI, ANGELO, CITTON, PAOLO, FABBI, SIMONE, ROMANO, MARCO   +3 more
core   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

Depositional models in Cretaceous rift stage of Fula sag, Muglad Basin, Sudan

Petroleum Exploration and Development, 2015
According to the study of petrology, log-phase, seismic facies, and sandstone distribution, the distribution of the Cretaceous rift sedimentary system in Fula sag of the Muglad Basin have been predicted, and the sedimentary models in two rift periods ...
Dong WU, Xiaomin ZHU, Zhi LI, Yongdi SU, Yinghui LIU, Mengyu ZHANG, Jianfeng SONG, Aixiang LIU, Xiangyi CHEN, Dongna ZHAO   +9 more
doaj   +1 more source

Sedimentology and reservoir properties of tabular and erosive offshore transition deposits in wave-dominated, shallow-marine strata : Book cliffs, USA [PDF]

, 2015
Acknowledgements and Funding Funding for this study was provided from the Research Council of Norway (Petromaks project 193059) and the FORCE Safari project. The helicopter-LiDAR data was collected by J. Valet and S. Pitiot of Helimap System SA.
Buckley, Simon J., Eide, Christian Haug, Howell, John A.   +2 more
core   +2 more sources

Sedimentary model reconstruction and exploration significance of Permian He 8 Member in Ordos Basin, NW China

Petroleum Exploration and Development, 2019
Based on the Late Paleozoic geological background and the latest exploration achievements of the Ordos Basin and North China platform, it is concluded that during the sedimentary period of Permian He 8 Member, the area in concern had multiple material ...
Hongping XIAO, Rui’e LIU, Fudong ZHANG, Changsong LIN, Mengyuan ZHANG   +4 more
doaj   +1 more source

Depositional processes and stratigraphic evolution of the Campanian deltaic system of La Anita Formation, Austral-Magallanes Basin, Patagonia, Argentina [PDF]

, 2019
Coastal depositional systems are commonly classified in terms of the relative interaction of wave, tide and fluvial processes. The La Anita Formation represents the opportunity to study and better understand coastal sedimentary systems.
Cereceda, Abril, Moyano Paz, Damián, Poire, Daniel Gustavo, Tettamanti, Camila, Varela, Augusto Nicolás   +4 more
core   +2 more sources

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Differential sedimentary evolution of typical aulacogens of Meso-Neoproterozoic in North China craton

Scientific Reports
Many countries and regions in the world have obtained industrial oil flow in the Meso-Neoproterozoic sedimentary strata and formed commercial exploitation in recent years.
Cong Tan, Qiqi Lyu, Tongshan Wang, Qiufen Li, Hua Jiang, Xue Yan   +5 more
doaj   +1 more source