Results 31 to 40 of about 86,603 (302)
Extended chronologies of aqueous alteration in the CM2 carbonaceous chondrites: evidence from carbonates in Queen Alexandra Range 93005 [PDF]
, 2012 The Antarctic CM2 carbonaceous chondrite QUE 93005 contains four compositionally distinct carbonates, namely breunnerite, calcite, dolomite and a Ca-poor dolomite. These carbonates can form monomineralic grains, or may be intergrown as bimineralic grains
Alexander, C. +4 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 +6 more
doaj +1 more source
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 +2 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.
Gorokhov, I.M. +8 more
core +1 more source
A carbon–carbon hybrid – immobilizing carbon nanodots onto carbon nanotubes
Chemical 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
Journal of Magnetic Resonance (1969), 1985 Nowadays many possibilities exist to elucidate carbon-carbon connectivity. In hydrogen-bearing carbon systems C-C connectivities can be traced out most conveniently in an indirect way by a combination of H-H COSY (I) and H-C CQSY (2). In case of overlapping ‘proton signals ambiguities can be removed by heteronuclear relayed spectroscopy (3) and ...
Kessler, Horst +2 more
openaire +2 more sources
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 +5 more
doaj +1 more source
Indonesian Journal on Geoscience, 2014 DOI: 10.17014/ijog.v7i3.141Recent carbonate platforms may provide useful analogues for fossil platforms and reefs, and could allow the generation of quantitative tools for the prediction of facies distribution, reservoir volumes, and reservoir quality ...
Aicha Chalabi +2 more
doaj +1 more source
pH Coupled Co-Precipitation of Alkaline-Earth Carbonates and Silica - Complex Materials from Simple Chemistry [PDF]
, 2017 The present work deals with the mineralization of alkaline-earth carbonates (mainly barium carbonate) from dilute silica solutions at high pH. It has for long been known that the concerted interaction between these purely inorganic components leads to ...
Eiblmeier, Josef
core +1 more source
Carbon Emission Reduction—Carbon Tax, Carbon Trading, and Carbon Offset [PDF]
Energies, 2020 The Paris Agreement was signed by 195 nations in December 2015 to strengthen the global response to the threat of climate change following the 1992 United Nations Framework Convention on Climate Change (UNFCC) and the 1997 Kyoto Protocol [...]
openaire +2 more sources