Results 11 to 20 of about 164,387 (261)
From Ancient Techniques to Modern Solutions: In Situ Synthesis of C‐S‐H for Sandstone Conservation
Herein, this work presents a paleo‐inspired approach to synthesizing and optimizing C‐S‐H‐based grouting mortars for conserving the sandstone of Beishan Grottoes, Dazu Rock Carvings, China. By achieving an optimal recipe compatible with natural sandstone, this work demonstrates the pivotal role of hydrogen bonding in the adhesion between C‐S‐H mortars ...
Mengjun Jia+9 more
wiley +1 more source
Chemical weathering and provenance evolution of Holocene–Recent sediments from the Western Indus Shelf, Northern Arabian Sea inferred from physical and mineralogical properties [PDF]
We present a multi-proxy mineral record based on X-ray diffraction and diffuse reflectance spectrophotometry analysis for two cores from the western Indus Shelf in order to reconstruct changing weathering intensities, sediment transport, and provenance ...
Clift, Peter D.+5 more
core +2 more sources
Contributions to mineralogy [PDF]
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Hidden, W. E., Washington, H. S.
openaire +2 more sources
ABSTRACT The burial mounds of the early Iron Age, which we will refer to below as kurgans, from the nomadic equestrian warriors of Eurasia, form a very complex group of archaeological monuments. Archaeological excavations in Aržan 2 (Siberia) and Aleksandropol (Ukraine) show that the large burial mounds are complex architectural constructions.
Jörg W. E. Fassbinder, Anton Gass
wiley +1 more source
The PANGAEA mineralogical database
Future human missions to the surface of the Moon and Mars will involve scientific exploration requiring new support tools to enable rapid and high quality science decision-making. Here, we describe the PANGAEA (Planetary ANalogue Geological and Astrobiological Exercise for Astronauts) Mineralogical Database developed by ESA (European Space Agency): a ...
Igor Drozdovskiy+14 more
openaire +4 more sources
GA: Ligand precursor 2‐(2‐pyridin‐2‐ylmethylamino)acetic acid (HL1) featuring flexible alkyl chains formed PtII and PtIV complexes with coordination involving the COO‐ group. In contrast, 4‐(2‐pyridin‐2‐ylmethylamino)benzoic acid (HL2) with a rigid p‐phenylene moiety successfully formed the desired PtII and PtIV complexes featuring free carboxylic acid
Stefan Richter+4 more
wiley +1 more source
An ion probe study of the sulphur isotopic composition of Fe-Ni sulphides in CM carbonaceous chondrites [PDF]
From the Introduction: The CM chondrites have endured variable degrees of aqueous alteration [1] which has changed their original mineralogy. A detailed study of the petrology and mineralogy of the sulphides in a suite of increasingly aqueously altered ...
Bullock, E. S.+4 more
core +1 more source
SR-FTiR microscopy and FTIR imaging in the earth sciences
During the last decades, several books have been devoted to the application of spectroscopic methods in mineralogy. Several short courses and meetings have addressed particular aspects of spectroscopy, such as the analysis of hydrous components in ...
Bellatreccia, F.+2 more
core +1 more source
Experimental constraints on amphibole stability in primitive alkaline and calc-alkaline magmas [PDF]
Equilibrium crystallization experiments were carried out on two primitive basaltic rocks (APR16: Na2O+K2O=4.40 wt%; CM42: Na2O+K2O=2.59 wt%) with the aim to investigate the amphibole stability in the differentiation processes at deep crustal level, of
Bonechi, Barbara+4 more
core +1 more source