Results 61 to 70 of about 84,949 (349)
Machine Learning for Reservoir Quality Prediction in Chlorite-Bearing Sandstone Reservoirs
GeosciencesWe have developed a generalisable machine learning framework for reservoir quality prediction in deeply buried clastic systems. Applied to the Lower Jurassic deltaic sandstones of the Tilje Formation (Halten Terrace, North Sea), the approach integrates ...
Thomas E. Nichols +5 more
doaj +1 more source
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 +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 +4 more
doaj +1 more source
Predicting protein decomposition: the case of aspartic-acid racemization kinetics [PDF]
, 1999 The increase in proportion of the non-biological (D-) isomer of aspartic acid (Asp) relative to the L- isomer has been widely used in archaeology and geochemistry as a tool for dating. The method has proved controversial, particularly when used for bones.
A. C. T. van Duin +24 more
core +3 more sources
Mapping diagenesis in archaeological human bones
Heritage Science, 2019 We describe a procedure for ascertaining the extent of diagenesis in archaeological human skeletons through the distribution of Sr, Ba, Cu, Pb, Fe, and Mn in cross-sections of femoral cortical bone.
K. Rasmussen +5 more
semanticscholar +1 more source
Formation of iron sulfide at faecal pellets and other microniches within suboxic surface sediment. [PDF]
, 2010 Faecal pellet deposition and bioturbation may lead to heterogeneously distributed particles of localized highly reactive organic matter (microniches) being present below the oxygen penetration depth.
Davison, William +3 more
core +1 more source
Heat-induced Bone Diagenesis Probed by Vibrational Spectroscopy
Scientific Reports, 2018 Complementary vibrational spectroscopic techniques – infrared, Raman and inelastic neutron scattering (INS) – were applied to the study of human bone burned under controlled conditions (400 to 1000 °C).
M. Marques +7 more
semanticscholar +1 more source
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 +4 more
doaj +1 more source
, 2020 Rodent accumulations are widely used for palaeoenvironmental reconstructions. But these accumulations are created through the activity of predators (carnivorous mammals, birds of prey), the predation and digestion of which modify the preservation of ...
Dauphin, Y.
core +2 more sources
Gold in Devono-Carboniferous red beds of northern Britain [PDF]
, 2015 We are grateful to D. Craw and an anonymous reviewer for comments that helped to clarify the paper.
Bellis, David +3 more
core +1 more source