Results 21 to 30 of about 1,477,943 (397)

Global distribution of carbonate rocks and karst water resources

open access: yesHydrogeology Journal, 2020
Karst regions offer a variety of natural resources such as freshwater and biodiversity, and many cultural resources. The World Karst Aquifer Map (WOKAM) is the first detailed and complete global geodatabase concerning the distribution of karstifiable ...
N. Goldscheider   +10 more
semanticscholar   +1 more source

Kinetic model of carbonate dissolution in Martian meteorite ALH84001 [PDF]

open access: yes, 2003
The magnetites and sulfides located in the rims of carbonate globules in the Martian meteorite ALH84001 have been claimed as evidence of past life on Mars.
Humayun, Munir, Kopp, Robert E.
core   +1 more source

Hydrocarbon Generation Potential of Microbial Carbonate in the Western Qaidam Basin, China: Implication From Thermocompression Experiment

open access: yesFrontiers in Earth Science, 2022
The potential of microbial carbonate rocks as hydrocarbon source rocks still remains uncertain. To evaluate the hydrocarbon generation and expulsion capability of microbial carbonate rocks, stromatolite obtained from the Xiaganchaigou formation of the ...
Min She   +9 more
doaj   +1 more source

Sedimentary characteristics of microbialites influenced by volcanic eruption: a case study from the Lower Cretaceous Shipu Group in Zhejiang Province, East China

open access: yesJournal of Palaeogeography, 2020
This study describes a sequence of microbialites and volcanics of the Lower Cretaceous Shipu Group, an example of microbialites influenced by volcanic activity.
Xiao-Fang Wang   +10 more
doaj   +1 more source

A review of development methods and EOR technologies for carbonate reservoirs

open access: yesPetroleum Science, 2020
Carbonate reservoirs worldwide are complex in structure, diverse in form, and highly heterogeneous. Based on these characteristics, the reservoir stimulation technologies and fluid flow characteristics of carbonate reservoirs are briefly described in ...
Zhengxiao Xu   +5 more
semanticscholar   +1 more source

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb carbonate geochronology: strategies, progress, and limitations

open access: yesGeochronology, 2020
. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb geochronology of carbonate minerals, calcite in particular, is rapidly gaining popularity as an absolute dating method. The high spatial resolution of LA-ICP-MS U–Pb carbonate
N. Roberts   +14 more
semanticscholar   +1 more source

A carbon–carbon hybrid – immobilizing carbon nanodots onto carbon nanotubes

open access: yesChemical Science, 2015
The thrust of this work is to integrate small and uniformly sized carbon nanodots (CNDs) with single-walled carbon nanotubes of different diameters as electron acceptors and electron donors, respectively, and to test their synergetic interactions in terms of optoelectronic devices.
Volker Strauss   +3 more
openaire   +5 more sources

Structural Evidence for a Copper-Bound Carbonate Intermediate in the Peroxidase and Dismutase Activities of Superoxide Dismutase [PDF]

open access: yes, 2012
Copper-zinc superoxide dismutase (SOD) is of fundamental importance to our understanding of oxidative damage. Its primary function is catalysing the dismutation of superoxide to O2 and H2O2. SOD also reacts with H2O2, leading to the formation of a strong
Luis Eduardo Soares Netto   +4 more
core   +3 more sources

InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards

open access: yesGeochemistry Geophysics Geosystems, 2020
Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth‐system processes.
S. Bernasconi   +60 more
semanticscholar   +1 more source

Dolomite genesis and reservoir-cap rock assemblage in carbonate-evaporite paragenesis system

open access: yesPetroleum Exploration and Development, 2019
Regarding to the problem on the reservoir-cap rock assemblage evaluation in the carbonate-evaporite paragenesis system, this study examined the dolomite and reservoirs genesis and the characteristics of reservoir-cap rock assemblage.
Anping HU   +6 more
doaj   +1 more source

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