Results 11 to 20 of about 138,819 (306)

A study of some Egyptian carbonate rocks for the building construction industry

open access: yesInternational Journal of Mining Science and Technology, 2014
A number of geotechnical analyses were carried out on selected carbonate rock samples from eight sites located in Egypt. This analysis was to assess the suitability of these rocks for building construction aggregate.
Mahrous A.M. Ali, Hyung-Sik Yang
doaj   +3 more sources

Multi-source genesis of continental carbonate-rich fine-grained sedimentary rocks and hydrocarbon sweet spots

open access: yesPetroleum Exploration and Development, 2021
This paper systematically discusses the multiple source characteristics and formation mechanisms of carbonate-rich fine-grained sedimentary rocks through the analysis of material source and rock formation.
Zaixing JIANG   +6 more
doaj   +3 more sources

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

Assessment of Karstification Degree in the Copacabana Group for a Tailings Dam Foundation, South Andes, Peru [PDF]

open access: yes, 2013
The world-wide occurrence of carbonate rocks is extensive, and Peru is no exception. Many mining facilities are located in or on carbonate rocks. Under specific conditions, carbonate rocks show varying degrees of karstification, which represent a ...
Azodolmolky, S.   +5 more
core   +2 more sources

Effects of elevated temperature on physical and mechanical properties of carbonate rocks in South-Southern Nigeria [PDF]

open access: yes, 2018
Purpose. Limestone and marble are carbonate rocks with several structural and engineering applications. The physical and mechanical properties of the rocks are fundamental as they determine their suitability for various use.
Idris, M.A.
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

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

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

Comparison of γ-ray spectrometry and ICP-MS methods for measuring radioactive heat-producing elements of rocks: a case study on borehole samples from the Sichuan Basin, China [PDF]

open access: yes, 2017
We compared the consistency of γ-ray spectrometry and inductively coupled plasma mass spectrometry by analyzing measurement results of the radioactive heat-producing elements U, Th, and K from borehole samples.
Hu, Shengbiao   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy