Results 11 to 20 of about 641,055 (339)

The potassic sedimentary rocks in Gale Crater, Mars, as seen by ChemCam on board Curiosity [PDF]

, 2016
The Mars Science Laboratory rover Curiosity encountered potassium-rich clastic sedimentary rocks at two sites in Gale Crater, the waypoints Cooperstown and Kimberley.
Anderson, RB, Blaney, D, Clegg, S, Cousin, A, Dromart, G, Fabre, C, Fisk, M, Forni, O, Gasnault, O, Grotzinger, JP, Gupta, S, Lanza, N, Lasue, J, Le Deit, L, Le Mouelic, S, Mangold, N, Maurice, S, McLennan, SM, Meslin, P-Y, Nachon, M, Newsom, H, Payre, V, Rapin, W, Rice, M, Sautter, V, Schroder, S, Stack, KM, Sumner, D, Treiman, AH, Wiens, RC   +29 more
core   +4 more sources

Clay mineral diversity and abundance in sedimentary rocks of Gale crater, Mars. [PDF]

Sci Adv, 2018
Clay minerals found in Gale crater, Mars, record surficial chemical weathering and changing conditions in an ancient lake. Clay minerals provide indicators of the evolution of aqueous conditions and possible habitats for life on ancient Mars. Analyses by
Bristow TF, Rampe EB, Achilles CN, Blake DF, Chipera SJ, Craig P, Crisp JA, Des Marais DJ, Downs RT, Gellert R, Grotzinger JP, Gupta S, Hazen RM, Horgan B, Hogancamp JV, Mangold N, Mahaffy PR, McAdam AC, Ming DW, Morookian JM, Morris RV, Morrison SM, Treiman AH, Vaniman DT, Vasavada AR, Yen AS.   +25 more
europepmc   +2 more sources

Application of Gradient Boosting Machine Learning Algorithms to Predict Uniaxial Compressive Strength of Soft Sedimentary Rocks at Thar Coalfield

Advance in Civil Engineering, 2021
The uniaxial compressive strength (UCS) of rock is one of the essential data in engineering planning and design. Correctly testing UCS of rock to ensure its accuracy and authenticity is a prerequisite for assuring the design of any rock engineering ...
Niaz Muhammad Shahani, Muhammad Kamran, Xigui Zheng, Cancan Liu, Xiaowei Guo   +4 more
semanticscholar   +1 more source

Petrogenesis of siliciclastic sediments and sedimentary rocks explored in three-dimensional Al2O3 – CaO*+Na2O – K2O – FeO+MgO (A-CN-K-FM) compositional space

Canadian journal of earth sciences (Print), 2022
Quantitatively determining the amount of chemical weathering within sedimentary rocks (and weathering profiles) took a major step forward with the creation of the chemical index of alteration (CIA) forty years ago.
C. Fedo, M. Babechuk
semanticscholar   +1 more source

Combined effects of depositional and diagenetic processes on the distribution of rock types in the Lucia petrophysical classification system: A case study of the Dalan and Kangan formations [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2021
Upper Dalan and Kangan carbonate formations with Late Permian–Early Triassic ages are considered the main gas reservoir rocks in some Persian Gulf fields.
Neda Shakeri, Hossain Rahimpour-Bonab, Vahid Tavakoli, Elham Haji Kazemi   +3 more
doaj   +1 more source

Phosphate Rocks: A Review of Sedimentary and Igneous Occurrences in Morocco

Minerals, 2021
Phosphate rocks are a vital resource for world food supply and security. They are the primary raw material for phosphoric acid and fertilizers used in agriculture, and are increasingly considered to be a potential source of rare earth elements. Phosphate
Radouan El Bamiki, Otmane Raji, M. Ouabid, A. Elghali, Oussama Khadiri Yazami, J. Bodinier   +5 more
semanticscholar   +1 more source

Recognition of Sedimentary Rock Occurrences in Satellite and Aerial Images of Other Worlds—Insights from Mars

Remote Sensing, 2021
Sedimentary rocks provide records of past surface and subsurface processes and environments. The first step in the study of the sedimentary rock record of another world is to learn to recognize their occurrences in images from instruments aboard orbiting,
Kenneth S. Edgett, Ranjan Sarkar
doaj   +1 more source

An analysis of the connection of microfacies, depositional environment, and diagenesis on the reservoir quality of the Mishrif Formation (Early Cenomanian–Turonian) in Esfand Field (Sirri E), northeast of the Persian Gulf [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2019
The Mishrif Formation (Cenomanian–Turonian) is one of the most important hydrocarbon reservoirs in the Persian Gulf. In this study, 151 microscopic thin sections and the porosity and permeability data on wells SIE-5 and SIE-6 in Esfand Oilfield were ...
Kiamars Hosseini, Peiman Rezaie, Sajjadkazem Shiroudi, Mohamad Moeini   +3 more
doaj   +1 more source

Classification and control factors of pore-throat systems in hybrid sedimentary rocks of Jimusar Sag, Junggar Basin, NW China

Petroleum Exploration and Development, 2021
Aiming at the complicated problem of the genesis of high-quality hybrid sedimentary rocks, the pore-throat systems, controlling factors and fluid mobility of hybrid sedimentary rocks in the Permian Lucaogou Formation in Jimusar Sag were examined.
Dianshi XIAO, Yang GAO, Shouchang PENG, Meng WANG, Min WANG, Shuangfang LU   +5 more
doaj   +1 more source

Inorganic geochemical characteristics and evaluation of Sinian-Cambrian post-mature source rocks in Sichuan Basin

Shiyou shiyan dizhi, 2022
The evaluation of post-mature source rocks gradually invalidates by traditional organic geochemical parameters due to the decreasing of organic matter abundance. However, the inorganic elements in source rocks are not easily affected by thermal evolution.
Chunhua SHI, Shujiao SHAN, Jing HAO, Bing LUO, Jian CAO   +4 more
doaj   +1 more source