Results 31 to 40 of about 651,839 (318)

Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]

, 2006
The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Bareille, Reine, Combes, Christèle, Rey, Christian   +2 more
core   +1 more source

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

Petroleum 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, Anjiang SHEN, Hanxuan YANG, Jie ZHANG, Xin WANG, Liu YANG, Shaoxing MENG   +6 more
doaj   +1 more source

Effect of carbonate chemistry alteration on the early embryonic development of the pacific pyster (Crassostrea gigas) [PDF]

, 2011
Ocean acidification, due to anthropogenic CO(2) absorption by the ocean, may have profound impacts on marine biota. Calcareous organisms are expected to be particularly sensitive due to the decreasing availability of carbonate ions driven by decreasing ...
Heip, Carlo H. R., Greaves, Mervyn, Jack J Middelburg, Gattuso, J.P., Greaves, M., Frédéric Gazeau, Jan Peene, Gazeau, F., Gazeau, Frédéric, Jack J. Middelburg, Middelburg, Jack J., Heip, Carlo, Middelburg Jack J., Middelburg, Jack, Elderfield Henry, Peene, J., Peene Jan, Elderfield, H., Mervyn Greaves, Middelburg, J.J., Gazeau Frédéric, Carlo H. R. Heip, Gattuso, Jean-Pierre, Heip Carlo H. R., Gattuso Jean-Pierre, Elderfield, Henry, Jean-Pierre Gattuso, Henry Elderfield, Carlo H R Heip, Peene, Jan, Gattuso, J.-P., Gazeau, F.P.H., Greaves Mervyn, Heip, C.H.R.   +33 more
core   +1 more source

Geochemical characteristics and origin of dolomite: A case study from the middle assemblage of Ordovician Majiagou Formation Member 5 of the west of Jingbian Gas Field, Ordos Basin, North China

Petroleum Exploration and Development, 2014
The trace elements, rare earth elements (REE), carbon and oxygen isotopic compositions and strontium isotopes were analyzed to study systematically the geochemical characteristics and origin of the middle assemblage dolomites from the Ordovician Majiagou
Xunyun HE, Jianfeng SHOU, Anjiang SHEN, Xingning WU, Yongsheng WANG, Yuanyuan HU, Yin ZHU, Dongxiao WEI   +7 more
doaj   +1 more source

The geochemical characteristics and origin analysis of the botryoidal dolomite in the Upper Sinian Dengying Formation in the Sichuan Basin, China

Journal of Natural Gas Geoscience, 2019
Botryoidal dolomite has great value for petroleum exploration and has dominantly developed in the middle and lower part of Member II in the Sinian Dengying Formation in the Sichuan Basin.
Anping Hu, Anjiang Shen, Ying Wang, Liyin Pan, Yongsheng Wang, Yi Hao, Jie Zhang   +6 more
doaj   +1 more source

Sedimentary environment and petrological features of organic-rich fine sediments in shallow water overlapping deposits: A case study of Cambrian Yuertus Formation in northwestern Tarim Basin, NW China

Petroleum Exploration and Development, 2020
: Taking the Cambrian Yuertus Formation outcrop profiles in the Aksu-Keping-Wushi areas of northwestern Tarim Basin as examples, the depositional environments of organic rich fine sediment were analyzed by examining the outcrop profiles macroscopically ...
Zhimin JIN, Xiucheng TAN, Hao TANG, Anjiang SHEN, Zhanfeng QIAO, Jianfeng ZHENG, Fei LI, Shixuan ZHANG, Lei CHEN, Chenggang ZHOU   +9 more
doaj   +1 more source

Control of paleogeographic pattern on sedimentary differentiation of evaporite-carbonate symbiotic system: A case study of the sixth sub-member of Ordovician Majiagou Formation M5 Member in central-eastern Ordos Basin, NW China

Petroleum Exploration and Development, 2022
The relationship between paleogeographic pattern and sedimentary differentiation of evaporite-carbonate symbiotic system is examined based on logging, core and thin section data, by taking the sixth sub-member of fifth member of Ordovician Majiagou ...
Shoukang ZHONG, Xiucheng TAN, Guang HU, Wancai NIE, Mengying YANG, Daofeng ZHANG, Jianfeng ZHENG, Jie XU, Guodong DONG, Di XIAO, Zixing LU   +10 more
doaj   +1 more source

Impact of facies and diagenetic variability on permeability and fluid flow in an oolitic grainstone—Pleistocene Miami Oolite

The Depositional Record, 2020
The Miami Oolite of South Florida is representative of a grainstone‐rich carbonate unit that has been surficially karsted, and therefore may be considered as an analogue for subsurface reservoirs/aquifers with ‘high’ permeability extremes.
Paul (Mitch) Harris, Sam Purkis
doaj   +1 more source

Design of Carbon–Carbon Ylides

Angewandte Chemie
Abstract Here, we have reported the computational design of a new class of ylides, elusive carbon–carbon ylides featuring zwitterionic σ‐bonds, derived from the norbornane‐2,6‐dione framework. Utilizing the state‐of‐the‐art computational methods, we have demonstrated that appropriate substitutions on this scaffold
Muhammad Yasir Mehboob, Emran Masoumifeshani, Zahra Badri, Cina Foroutan‐Nejad   +3 more
openaire   +2 more sources

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

, 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., Hood, Steven D., Campbell S. Nelson, Kamp, Peter J.J., Steven D. Hood, Peter J. J. Kamp   +5 more
core   +1 more source