Results 1 to 10 of about 719,345 (385)
Recognition of Sedimentary Rock Occurrences in Satellite and Aerial Images of Other Worlds—Insights from Mars [PDF]
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 +3 more sources
Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater. [PDF]
Proc Natl Acad Sci U S A, 2016 Significance Tridymite, a SiO2 mineral that crystallizes at low pressures and high temperatures (>870 °C) from high-SiO2 materials, was detected at high concentrations in a sedimentary mudstone in Gale crater, Mars.
Morris RV +22 more
europepmc +2 more sources
The Age and Erosion Rate of Young Sedimentary Rock on Mars [PDF]
Planetary Science Journal 3 246 (2022), 2022 The Medusae Fossae Formation (MFF) is an enigmatic sedimentary unit near the equator of Mars, with an uncertain formation process and absolute age. Due to the heavily wind-eroded surface, it is difficult to determine the absolute model age of the MFF using a one-parameter model based on the crater size-frequency distribution function with existing ...
An Li, Edwin S. Kite, Katarina Keating
arxiv +3 more sources
Rupture cascades in a discrete element model of a porous sedimentary rock [PDF]
Phys. Rev. Lett. 112, 065501 (2014), 2014 We investigate the scaling properties of the sources of crackling noise in a fully-dynamic numerical model of sedimentary rocks subject to uniaxial compression. The model is initiated by filling a cylindrical container with randomly-sized spherical particles which are then connected by breakable beams.
F. Kun +3 more
arxiv +3 more sources
Depositional environment of Jurassic deposits in the Binalud basin, according to the provenance and paleo-tectonic setting, northwest of Mashhad, Iran [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2021 The thick Jurassic fluvial coarse-grained sediments rest non-conformably on older metamorphic rocks to the northwest of Mashhad. Two sections, 300 and 400 m thick, were measured and studied through the Jurassic deposits.
Mehdi Reza Poursoltani +2 more
doaj +1 more source
Study on sedimentary facies characteristics of Xujiahe Formation in Sichuan Basin [PDF]
E3S Web of Conferences, 2021 Sedimentary facies is the summation of all primary sedimentary features in a sedimentary unit, which is the product of sedimentation in a specific environment. It emphasizes the material performance of sediment formation conditions, including mineralogy,
Zhiguo Wang
doaj +1 more source
Engineering geological studies for empirical design of tunnel 7 of Jakarta - Bandung high-speed railway, Indonesia [PDF]
E3S Web of Conferences, 2021 The empirical design of tunnel 7 of the Jakarta-Bandung high-speed railway was based on the Basic Quality (BQ) system, which was the Chinese standard of rock mass classification.
Pramono Riski +2 more
doaj +1 more source
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 The study of a clastic and carbonate rock depositional model in a continental rift basin is helpful to better understand the sedimentary processes active in continental rift basins.
Shaoze Zhao +8 more
doaj +1 more source
Swiss Journal of Geosciences, 2023 Mudstone characterized by typical structures and mineral assemblages in the Tamusu Mudstone pre-selected area, in Inner Mongolia, Northwest China, has been selected as a potential host rock for China’s high-level radioactive waste (HLW) repository ...
Long Xiang +4 more
doaj +1 more source
Nyexon Rock Avalanches: A Special Intrusion Restraint Mechanism, Tibet, China
Frontiers in Earth Science, 2022 The Nyexon Rock Avalanches in the southern Qinghai-Tibet Plateau is a huge scale earthquake-induced slope disaster in the Holocene, the accumulation area has distinct sedimentological characteristics, which is of great significance for studying the ...
Jie Cui +7 more
doaj +1 more source