Results 1 to 10 of about 743,816 (307)

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

open access: yesRemote 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   +2 more sources

The Age and Erosion Rate of Young Sedimentary Rock on Mars [PDF]

open access: goldThe Planetary Science Journal, 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 ...
An Li, Edwin S. Kite, Katarina Keating
openalex   +3 more sources

Early thinning, late persistence, diachronous boundaries, and a regional dichotomy in Mars' young sedimentary rocks [PDF]

open access: yesCommunications Earth & Environment
Mars’ sedimentary rocks record Gyrs of environmental change. New data enable global analyses of paleo-environment relevant physical properties of these rocks, including layer thickness and accumulation rate.
Madison L. Turner   +4 more
doaj   +2 more sources

Natural Radioactivity Measurements and Radiation Dose Estimation in Some Sedimentary Rock Samples in Turkey [PDF]

open access: gold, 2014
The natural radioactivity existed since creation of the universe due to the long life time of some radionuclides. This natural radioactivity is caused by γ-radiation originating from the uranium and thorium series and 40K.
İskender Akkurt, Kadir Günoğlu
openalex   +2 more sources

Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater. [PDF]

open access: yesProc Natl Acad Sci U S A, 2016
Morris RV   +22 more
europepmc   +2 more sources

Depositional environment of Jurassic deposits in the Binalud basin, according to the provenance and paleo-tectonic setting, northwest of Mashhad, Iran [PDF]

open access: yesJournal 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

Types of fine-grained sedimentary rocks assemblage and its significance for shale oil exploration: A case study of the fifth member of Xujiahe Formation in western Sichuan Depression, Sichuan Basin [PDF]

open access: yesYouqicang pingjia yu kaifa, 2023
Due to the complex lithology of fine-grained sedimentary rocks and the difficulty to determine the “sweet spot” of the fifth member of Xujiahe Formation(short for Xu-5 Member) of western Sichuan Depression, Sichuan Basin, a comprehensive geological ...
XIONG Liang, CAO Qinming, ZHANG Ling, WANG Linghui
doaj   +1 more source

Discussion on classification and naming scheme of fine-grained sedimentary rocks

open access: yesPetroleum Exploration and Development, 2022
Based on reviews and summaries of the naming schemes of fine-grained sedimentary rocks, and analysis of characteristics of fine-grained sedimentary rocks, the problems existing in the classification and naming of fine-grained sedimentary rocks are ...
Jun PENG   +4 more
doaj   +1 more source

Study on sedimentary facies characteristics of Xujiahe Formation in Sichuan Basin [PDF]

open access: yesE3S 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

Home - About - Disclaimer - Privacy