Results 71 to 80 of about 7,444 (188)

Alkaline diagenesis and its effects on reservoir porosity: A case study of Upper Triassic Chang 7 Member tight sandstone in Ordos Basin, NW China

Petroleum Exploration and Development, 2015
Petrologic features, diagenetic processes and origins of different pore types of Upper Triassic Chang 7 (7th member of Yanchang Formation) tight sandstones in the Ordos Basin were analyzed based on cast thin sections, scanning electron microscope (SEM ...
Haihua ZHU, Dakang ZHONG, Jingli YAO, Haitao SUN, Xiaobing NIU, Xiaowei LIANG, Yuan YOU, Xin LI   +7 more
doaj   +1 more source

Procedencia y modelo diagenético de las areniscas de Facies Utrillas en la cordillera Ibérica (Umbral de Ateca) y la meseta norcastellana [PDF]

, 1992
Las facies Utrillas de la Cordillera Ibérica, en los alrededores del Umbral de Ateca y en la Meseta norcastellana, provincia de Soria, son un depósito detrítico formado en un ambiente sedimentario de sistemas aluviales que se puede subdividir en dos ...
Gómez-Gras, D., Marfil, Rafaela
core   +2 more sources

Niveles de plomo en los individuos de la necrópolis tardorromana de la c/ Virgen de la Misericordia (Valencia) [PDF]

, 2014
El objetivo general de este estudio ha sido determinar los contenidos de plomo (Pb) en restos de huesos y suelos de la necrópolis de la c/ Virgen de la Misericordia (Valencia) para reconstruir el proceso de transición del elemento (desde el sedimento ...
Bartoli, Fulvio, Diez Castillo, Agustín, Díaz Pastor, Agustín, Gallello, Gianni, Larini, Alessia, Mallegni, Francesco   +5 more
core   +1 more source

Drilling the Marathousa palaeo‐lake in Greece (Peloponnese): inferring the environmental context of a Middle Pleistocene archaeological site

Boreas, EarlyView.
The Megalopolis Basin is located in the central Peloponnese (Greece), a region that is situated along one of the primary Pleistocene biogeographical corridors for intracontinental hominin migration. The basin comprises several hundred metres of Plio‐Pleistocene sediments alternating between clastics and lignites.
Ines J. E. Bludau, Bernd Wagner, Uwe Kirscher, Maria Schindler, Charlotte Zachow, Johannes Schmidt, Niklas Leicher, Giovanni Muttoni, Serena Perini, Vangelis Tourloukis, Eleni Panagopoulou, Panagiotis Karkanas, Katerina Harvati, Annett Junginger   +13 more
wiley   +1 more source

Control of oolitic beaches sedimentation and diagenesis on the reservoirs in Feixianguan Formation, northeastern Sichuan Basin

Petroleum Exploration and Development, 2012
Based on well correlation, division of sedimentary facies and microfacies, core observation, and analysis of rock thin sections, the authors comparatively analyzed the sedimentation and diagenesis of the oolitic beaches in the Puguang and Yuanba areas of
Yunlan HE, Xiaoyue FU, Bo LIU, Minghui ZHOU, Xuefeng ZHANG, Jixian GAO, Yunkun YANG, Kaibo SHI   +7 more
doaj   +1 more source

Diagenetic processes in Quaternary fossil bones from tropical limestone caves

Scientific Reports, 2020
Quaternary fossils from limestone caves bear various diagenetic features due to the complex nature of sedimentary processes. However, few studies have addressed the problem of diagenetic changes in fossils from tropical-wet environments.
Daniel Vieira de Sousa, Estevan Eltink, Raquel Aline Pessoa Oliveira, Jorlandio Francisco Félix, Luciano de Moura Guimarães   +4 more
doaj   +1 more source

New Potential Haematite and Magnetite Reference Materials for Iron Isotope Measurements by Solution Nebulisation MC‐ICP‐MS and by In Situ ns‐LA‐MC‐ICP‐MS

Geostandards and Geoanalytical Research, EarlyView.
Key Points Two haematite and magnetite materials were developed as potential Fe isotope reference materials. Solution and in situ LA‐MC‐ICP‐MS analyses yielded consistent δ56Fe values. Both materials are isotopically homogeneous and suitable for in situ Fe isotope calibration.
Jialu Yu, Marcus Oelze, Mathias Schannor, Simon Nordstad, Jochen Vogl   +4 more
wiley   +1 more source

Procesos de formación y efectos taxonómicos en entierros humanos: el caso del sitio Paso Alsina 1 en Patagonia Nororiental, Argentina [PDF]

, 2013
El registro bioarqueológico del sitio Paso Alsina 1 (curso inferior del río Colorado, provincia de Buenos Aires, Argentina) aporta evidencias importantes para el conocimiento de las poblaciones humanas que habitaron esta zona transicional entre Pampa y ...
Gonzalez, Mariela Edith
core  

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

Diagenetic evolution characteristics of Paleogene lacustrine carbonate reservoirs in central Bohai sea, China

Journal of Natural Gas Geoscience, 2018
The distribution of high-quality reservoirs in Shahejie Formation of the Shijiutuo Uplift, Central Bohai Sea, is the key factor to determine the oil and gas accumulation.
Zhengxiang Lv, Yuanhua Qing, Fu Zhao, Jiayang Wu, Xiandong Wang   +4 more
doaj   +1 more source