Results 21 to 30 of about 871,982 (402)

Structural-mineralogical alterations of sandstones in rock-water and rock-water-oil systems within oil-water contact [PDF]

open access: yesE3S Web of Conferences, 2019
Structural-mineralogical alterations of sandstones under conditions of natural water-oil interaction within Jurassic sedimentary sequences in south-eastern Nurolsk sedimentary basin (Tomsk Oblast, Western Siberian, petroleum province) depend on their ...
Nedolivko Natalya
doaj   +1 more source

Rock organic carbon oxidation CO2 release offsets silicate weathering sink

open access: yesNature, 2023
Mountain uplift and erosion have regulated the balance of carbon between Earth’s interior and atmosphere, where prior focus has been placed on the role of silicate mineral weathering in CO_2 drawdown and its contribution to the stability of Earth’s ...
J. Zondervan   +5 more
semanticscholar   +1 more source

Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2 uptake by continental weathering and alkalinity river transport to the oceans [PDF]

open access: yes, 2003
The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic ...
Amiotte Suchet, Philippe   +2 more
core   +2 more sources

Soil Depth Prediction Model Using Terrain Attributes in Gangwon-do, South Korea

open access: yesApplied Sciences, 2023
Soil depth is a crucial parameter in slope stability analysis in mountainous areas. The drilling survey is the most reliable method for determining soil depth, but it requires a high cost for the vast geographical area.
Jinwook Kim, Hosung Shin
doaj   +1 more source

Constraints of sedimentary environment on phosphorization of phosphorus-bearing rock series in the Xinhua Gezhongwu Formation, Zhijin County, Guizhou Province

open access: yes地质科技通报, 2023
Objective The Early Cambrian superlarge rare earth-rich phosphate deposit in Xinhua, Zhijin County, Guizhou Province, is a typical marine sedimentary deposit.
Yuhang Wang   +6 more
doaj   +1 more source

Surface and subsurface engineering geological mapping for empirical designs of excavation method and support system of Tunnel 6 of Jakarta-Bandung high speed railway, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2021
Empirical design of support system at the Tunnel 6 of the Jakarta – Bandung high-speed railway was based on the Basic Quality (BQ) system, which had not been adopted in Indonesia.
Malda Octavika   +2 more
doaj   +1 more source

Provenance history of a Late Triassic-Jurassic Gondwana margin forearc basin, Murihiku Terrane, North Island, New Zealand: petrographic and geochemical constraints [PDF]

open access: yes, 2004
The Murihiku Terrane in the North Island was a forearc basin adjacent to a volcanic arc along the eastern margin of Gondwana during the Mesozoic. The rocks that infill the basin are mainly volcaniclastic sandstones and mudstones, often turbiditic, with ...
Briggs, Roger M.   +2 more
core   +2 more sources

Orbital frequencies in the carbonate sedimentary record: distorted by diagenesis? [PDF]

open access: yes, 2004
The most important archive of Earth’s climate change through geologic history is the sedimentary rock record. Rhythmic sedimentary alternations are usually interpreted as a consequence of periodic variations in the orbital parameters of the Earth.
Bornholdt, Stefan   +2 more
core   +1 more source

Rupture cascades in a discrete element model of a porous sedimentary rock. [PDF]

open access: yesPhysical Review Letters, 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.
F. Kun   +3 more
semanticscholar   +1 more source

A study of high-frequency strong ground motion from the San Fernando earthquake [PDF]

open access: yes, 1975
This thesis describes an investigation of the attenuation of strong earthquake ground motion in the 0. 4 to 16 Hz frequency band during the M=6.4, February 9, 1971, San Fernando, California earthquake.
Berrill, John Beauchamp
core   +2 more sources

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