Results 181 to 190 of about 61,474 (312)

Spontaneous crack healing in calcite reveals the influence of dynamic strain evolution and surface chemistry. [PDF]

Nat Commun
Devoe M, P Lisabeth H, Nakagawa S, Hao Z, Tamura N, Wenk HR.   +5 more
europepmc   +1 more source

Microbially induced calcite precipitation by a novel alkaliphilic Bacillus albus strain for sustainable self-healing bio-mortar with enhanced mechanical performance and durability. [PDF]

Sci Rep
Ibrahim SM, Said D, Heikal M, Abdel-Monem MO, Dawwam GE.   +4 more
europepmc   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Biogrout: a novel binding material for soil improvement and concrete repair

Frontiers in Microbiology, 2016
Varenyam eAchal, Satoru eKawasaki
doaj   +1 more source

Quaternary tufas of the western Potiguar Basin, Brazil: rapid xeromorphic adaptation and climate change inferred from sedimentology, paleobotany, and fossil diagenesis. [PDF]

Naturwissenschaften
Aureliano T, Correa L, Ghilardi AM, Erthal M, B Dantas T, C Pontes CC, Lima ML, Maia R, Rusinelli BB, Santiago F, Lima-Filho FP, Ricardi-Branco FS, Bezerra FHR.   +12 more
europepmc   +1 more source

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

Acid Dissolution of Magnesian-Calcite Stromatolites from Lagoa Salgada: An Experimental Evaluation Using X‑ray Microtomography. [PDF]

ACS Omega
Serra VFH, da Silva JP, da Cunha ACS, Neyra JR, Lucas CRDS, da Silva DNN, Aum PTP.   +6 more
europepmc   +1 more source

A geophysical investigation of the Roter Kamm impact crater, Namibia

Meteoritics &Planetary Science, EarlyView.
Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus, Pritam Yogeshwar, Wiebke Mörbe, Bülent Tezkan, Yajun Liu, Bufelo Lushetile, Martin Melles   +6 more
wiley   +1 more source

A Model System of Biocompatible Organic-Inorganic Materials Containing Salicylate Peptides and Calcite: Insights into Precipitation Kinetics. [PDF]

ACS Omega
Jurković L, Jakas A, Gredičak M, Kralj D.   +3 more
europepmc   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source