Results 11 to 20 of about 308,248 (332)

Enhancing Computational Precision for Lattice Boltzmann Schemes in Porous Media Flows

Computation, 2016
We reassess a method for increasing the computational accuracy of lattice Boltzmann schemes by a simple transformation of the distribution function originally proposed by Skordos which was found to give a marginal increase in accuracy in the original ...
Farrel Gray, Edo Boek
doaj   +1 more source

Discriminating cool-water from warm-water carbonates and their diagenetic environments using element geochemistry: the Oligocene Tikorangi Formation (Taranaki Basin) and the dolomite effect [PDF]

, 2004
Fields portrayed within bivariate element plots have been used to distinguish between carbonates formed in warm- (tropical) water and cool- (temperate) water depositional settings.
Al‐Aasm I. S., Al‐Hashimi W, Brand U., Brand U., Hood S. D., Hood S. D., Hood S. D., James N. P., Lumsden D. N., Morrison J. O., Morse J. W., Rao C. P., Tucker M., Veizer J., Winefield P.   +14 more
core   +2 more sources

Carbon···Carbon Weak Interactions

The Journal of Physical Chemistry A, 2009
A theoretical study of the complexes formed by systems with electron-deficient and electron-excessive carbon atoms was carried out using DFT and ab initio methods up to the CCSD(T)/aug-cc-pVTZ computational level. Stable complexes with interaction energies between -6.0 and -22.8 kJ mol(-1) were obtained that correspond to weak C...C interactions.
Alkorta, Ibon, Blanco, Fernando, Elguero, José, Dobado, J. A., Ferrer, S. M., Vidal, I.   +5 more
openaire   +3 more sources

Characterization and evaluation of ultra-deep fracture-pore tight sandstone reservoirs: A case study of Cretaceous Bashijiqike Formation in Kelasu tectonic zone in Kuqa foreland basin, Tarim, NW China

Petroleum Exploration and Development, 2014
Taking the Cretaceous Basijiqike Formation sandstone reservoirs in the Kuqa foreland basin as an example, this paper studies the characterization and evaluation methods of fracture-pore (fracture-primary pore and fracture-dissolution pore) ultra-deep ...
Huiliang ZHANG, Ronghu ZHANG, Haijun YANG, Jianfeng SHOU, Junpeng WANG, Chun LIU, Ge CHEN   +6 more
doaj   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P., Anthony E. Fallick, Anton B. Kuznetsov, Bowring S.A., Brand U., Brasier M.D., Brasier M.D., Brasier M.D., Burns S.J., Calver C.R., Corsetti F.A., Fairchild I.J., Fairchild I.J., Gao G., Gorokhov I.M., Gorokhov I.M., Gorokhov I.M., Grotzinger J.P., Grotzinger J.P., Hoffman P.F., Igor M. Gorokhov, Kaufman A.J., Kennedy M.J., Kirschvink J.L., Knoll A.H., Knoll A.H., Knoll A.H., Kupecz J.A., Kuznetsov A.B., Kuznetsov A.B., Lambert I.B., Magaritz M., McArthur J.M., McArthur J.M., McCulloch M.T., Melezhik V.A., Morton J.P., Ovchinnikova G.V., Pelechaty S.M., Podkovyrov V.N., Pokrovsky B.G., Pokrovsky B.G., Pokrovsky B.G., Saylor B.Z., Semikhatov M.A., Singh U., Smith L.H., Tronnes R.G., Tucker M.E., Tucker M.E., Veizer J., Veizer J., Victor A. Melezhik, Wada S.-I., Walter M.R., Wang Da-Rui   +55 more
core   +1 more source

Identification du rythme annuel de précipitation des carbonates pariétaux pour un calage micro-chronologique des occupations archéologiques pyrogéniques : cas de la Grotte Mandrin (Malataverne, Drôme, France)

BSGF - Earth Sciences Bulletin, 2021
Dans les abris-sous-roche et grottes, la lecture géoarchéologique des sédiments peut permettre, dans des cas favorables, une étude micro-chronologique des traces d’activités anthropiques et en particulier de l’usage du feu.
Vandevelde Ségolène, Lacour Jean-Luc, Quéré Céline, Marie Lionel, Petit Christophe, Slimak Ludovic   +5 more
doaj   +1 more source

Sedimentary Iron Cycling and the Origin and Preservation of Magnetization in Platform Carbonate Muds, Andros Island, Bahamas [PDF]

, 2007
Carbonate muds deposited on continental shelves are abundant and well-preserved throughout the geologic record because shelf strata are difficult to subduct and peritidal carbonate units often form thick, rheologically strong units that resist ...
Bosak, Tanja, Fike, David A., Grotzinger, John P., Kirschvink, Joseph L., Kopp, Robert E., Maloof, Adam C., Poussart, Pascale M., Vali, Hojotollah, Weiss, Benjamin P.   +8 more
core   +1 more source

Dynamics of snap-off and pore-filling events during two-phase fluid flow in permeable media

Scientific Reports, 2017
Understanding the pore-scale dynamics of two-phase fluid flow in permeable media is important in many processes such as water infiltration in soils, oil recovery, and geo-sequestration of CO2.
Kamaljit Singh, Hannah Menke, Matthew Andrew, Qingyang Lin, Christoph Rau, Martin J. Blunt, Branko Bijeljic   +6 more
doaj   +1 more source

Influence of Lithofacies and Diagenetic Processes on the Physical and Mechanical Properties of Carbonate Rocks - Case Study from Sinawin-Sha'wa Area, Libya

Rudarsko-geološko-naftni Zbornik, 2015
Geological investigations were carried out in the Sinawin-Sha'wa area, in northwestern Libya, in order to find suitable rocks for aggregate in asphalt mixtures for Nalut - Ghadamis Road reconstruction.
Uroš Barudžija, Ana Maričić, Vlatko Brčić   +2 more
doaj   +1 more source

In-situ cosmogenic ³⁶Cl denudation rates of carbonates in Guizhou karst area [PDF]

, 2013
This study quantifies surface denudation of carbonate rocks by the first application of in-situ cosmogenic ³⁶Cl in China. Concentrations of natural Cl and in-situ cosmogenic ³⁶Cl in bare carbonates from ...
Freeman, Stewart, Lang, Yun Chao, Liu, Cong Qiang, Schnabel, Christoph, Tu, Cheng Long, Wilcken, Klaus, Xu, Sheng, Zhao, Zhi Qi   +7 more
core   +2 more sources