Results 31 to 40 of about 37,605 (307)

EXPANSION BRECCIAS IN CARBONATE ROCKS

Geological Society of America Abstracts with Programs, 2016
We describe breccias in limestone or dolomite that appear to have been expanded with no shearing. In examples from the Lower Cretaceous Maiolica pelagic limestone in the Apennines and the Mississippian Madison Limestone in Wyoming, they are made of angular carbonate fragments from
Alvarez, Walter, Belza, Joke, Claeys, Philippe, Peacock, David, Tavarnelli, Enrico   +4 more
openaire   +1 more source

A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland [PDF]

, 2009
The Neoproterozoic Dalradian Supergroup is a dominantly siliciclastic metasedimentary succession in the Caledonian orogenic belt of Scotland and Ireland.
Fallick, A. E., Fallick, A.E., Prave, Tony, Graham, C.M., Thomas, C. W., Graham, C. M., Prave, A.R., Thomas, Christopher, Thomas, C.W.   +8 more
core   +1 more source

Dissolution of supercritical CO₂ on carbonate reservoirs

Youqicang pingjia yu kaifa, 2023
In order to study the physicochemical reaction law of carbonate rock reservoirs under the condition of CO2 geological storage, lab experiments on the reaction of carbonate rocks and supercritical CO2 under reservoir conditions were carried out with the ...
LI Ying, MA Hansong, LI Haitao, GANZER Leonhard, TANG Zheng, LI Ke, LUO Hongwei   +6 more
doaj  

Review and prospect of research on the role of micro-organisms in karst carbon cycle

Carsologica Sinica, 2022
The issue of global climate change has drawn much attention to the research on the carbon cycle of karst systems. Carbonate rock is the largest known carbon pool on the earth.
Weihua KANG, Congyu CHENG, Wei LI, Longjiang YU   +3 more
doaj   +1 more source

Basic friction angles of carbonate rocks from Kananaskis country, Canada

, 1988
Basic friction angles of the Paleozoic carbonate rocks of Kananaskis Country, west of Calgary, Canada were determined on a tilting table to range from 21.5° to 41.3°.
Cruden, D. M., Hu, X. Q.
core   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Distinct Systemic Sclerosis Phenotypes Related to Ethnicity: An Opportunity to Personalize Care?

Arthritis Care &Research, EarlyView.
Objective The objective is to describe and compare demographic, clinical, and serological characteristics of patients with systemic sclerosis (SSc) according to ethnic background. Methods Participants enrolled in the Canadian Scleroderma Research Group cohort who self‐identified to a single ethnicity group were included.
Danick Goulet, Camille Guertin, Maggie Larché, Isabelle Ferdinand, Marie Hudson, May Y. Choi, Mohammed Osman, Janet Pope, Carter Thorne, Murray Baron, Sasha Bernatsky, Sabrina Hoa   +11 more
wiley   +1 more source

Natural gas accumulation from carbonate source rock with low total organic carbon content and high maturity: a case study of the Leikoupo Formation in the western Sichuan Depression

Discover Applied Sciences
Carbonate source rocks with low total organic carbon content (LTOC) are generally considered to be challenging to form large-scale oil and gas fields independently and are even regarded as ineffective source rocks.
Xinya Yu, Parhat Zunu
doaj   +1 more source

Rare Earth Element Composition of Carbonate Rocks Afforded by LA-ICP-MS and Its Formation Environment of the Zhaidi Underground River in Guilin

Yankuang ceshi, 2016
Rare earth elements are an important indicator for studying the formation condition and environmental characteristics of sedimentary rocks. The REEs of limestone samples in the Zhaidi underground river in Guilin were determined by Laser Ablation ...
FAN Lian-jie, PEI Jian-guo, ZHAO Liang-jie, LIN Yong-sheng, LU Li, WANG Zhe   +5 more
doaj   +1 more source

Stable oxygen and carbon isotope compositional fields for skeletal and diagenetic components in New Zealand Cenozoic nontropical carbonate sediments and limestones: A synthesis and review

, 1996
The stable oxygen isotope composition (δ18O) of a precipitated carbonate depends mainly on the isotope composition, salinity, and temperature of the host fluid, whereas the stable carbon isotope composition (δ13C) reflects the source of CO2 for ...
Nelson, Campbell S., Campbell S. Nelson, Smith, Abigail M., Abigail M. Smith   +3 more
core   +1 more source