Results 11 to 20 of about 37,605 (307)

Carbonate Rocks [PDF]

open access: yesNature, 1967
Includes bibliographical references and indexes.Elemental composition of carbonate skeletons, minerals, and sediments / K.H. Wolf [and others] -- Physical chemistry of formation of carbonates / W.H. Taft -- Chemistry of dolomite formation / K.J.
Chilingar, George V.   +2 more
openaire   +2 more sources

Predicting the acoustic characteristics of seafloor sediments containing cold spring carbonate rocks

open access: yesFrontiers in Marine Science, 2023
The acoustic and physical properties of two valuable marine cold spring carbonate rock samples gathered from the Chaoshan Depression in the South China Sea were measured.
Yuhang Tian   +8 more
doaj   +1 more source

Damage Characteristics of Thermally Deteriorated Carbonate Rocks: A Review

open access: yesApplied Sciences, 2022
This review paper summarizes the recent and past experimental findings to evaluate the damage characteristics of carbonate rocks subjected to thermal treatment (20–1500 °C).
Umer Waqas   +4 more
doaj   +1 more source

Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge [PDF]

open access: yesBiogeosciences, 2018
Deep-sea carbonates represent an important type of sedimentary rock due to their effect on the composition of the upper oceanic crust and their contribution to deep-sea geochemical cycles.
H. Xu   +7 more
doaj   +1 more source

Laboratory Models of Microbial Biosignatures in Carbonate Rocks [PDF]

open access: yes, 2005
Enigmatically shaped laminated carbonate rocks called stromatolites dominated shallow marine environments for the first 80% of Earth’s history, and are potentially the oldest macrofossils.
Bosak, Tanja
core   +1 more source

Petrogenesis of diachronous mixed siliciclastic-carbonate megafacies in the cool-water Oligocene Tikorangi Formation, Taranaki Basin, New Zealand [PDF]

open access: yes, 2003
The Oligocene (Whaingaroan-Waitakian) Tikorangi Formation is a totally subsurface, lithostratigraphically complex, mixed siliciclastic-limestone-rich sequence forming an important fracture reservoir within Taranaki Basin, New Zealand.
Nelson, Campbell S.   +5 more
core   +1 more source

HEMATITE-CARBONATE ROCKS OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS): EVIDENCE OF REPLACEMENT OF SULFIDE CLASTS AND HYALOCLASTS [PDF]

open access: yesМинералогия
The article considers textural and structural features of hematite-carbonate rocks associated with carbonate-sulfide clastic ores of the Yubileynoe massive sulfide deposit, South Urals.
A.S. Tseluyko   +4 more
doaj   +1 more source

Effects of pore size and pore connectivity on trapped gas saturation

open access: yesJournal of Hydrology and Hydromechanics, 2023
Trapped or residual air (or gas) is known to affect the multiphase hydraulic properties of both soils and rocks. Trapped air is known to impact many vadose zone hydrologic applications such as infiltration and flow in the capillary fringe, but is also a ...
Dias Caroline H.   +7 more
doaj   +1 more source

Influencing factors for breakthrough pressure of carbonate caprocks

open access: yesShiyou shiyan dizhi, 2021
In addition to traditional gypsum salt rocks and shale rocks, many studies have confirmed that carbonate rocks also work as oil and gas seals. Breakthrough pressure is a characteristic parameter for the evaluation of the sealing ability of cap rocks ...
Lu ZHANG   +7 more
doaj   +1 more source

New knowledge of hydrocarbon generating theory of organic matter in Chinese marine carbonates

open access: yesPetroleum Exploration and Development, 2017
The marine carbonates of the Tarim Basin are taken to study the relationship between source rock and oil and gas reservoirs and discuss the possibility and mechanisms of mature and low-TOC (less than 0.5%) marine carbonates being source rock. By studying
Wenhui LIU   +9 more
doaj   +1 more source

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