Results 251 to 260 of about 169,014 (352)

Comments on processes contributing to the isotope composition of 13C and 18O in calcite deposited to speleothems

, 2011
Wolfgang Dreybrodt
openalex   +2 more sources

Sedimentary biogeochemical provinces in the northern limit of the oxygen minimum zone from the northeastern Mexican Pacific

Sedimentology, EarlyView.
ABSTRACT Continental margins are reservoirs of materials of terrestrial and marine origin, and they play a crucial role in understanding the spatial and temporal variability of biogeochemical cycles. This, in turn, provides insights into the development and intensity of oxygen minimum zones (OMZs).
Alberto Sánchez
wiley   +1 more source

Effects of Bacillus pumilus precipitation on the flexural strength of jute fibre reinforced concrete. [PDF]

Sci Rep
Wilson UN, Salami A, Adisa MA.
europepmc   +1 more source

Spherulite in the modern aragonitic travertine stromatolite has a calcite core with exopolymers

Sedimentology, EarlyView.
ABSTRACT Spherulites are spherical to ellipsoidal particles formed by various crystalline substances and can be abiotically synthesised in the laboratory. Among various spherulite types, spherulites composed of calcium carbonate are also found in various natural environments, but their abiotic or biotic origins are still controversial.
Fumito Shiraishi, Takayuki Akimoto, Naotaka Tomioka, Satoko Motai, Yoshio Takahashi   +4 more
wiley   +1 more source

Scalable Synthesis of Aragonite Whiskers Under Higher Initial Ca²⁺ Concentrations. [PDF]

Nanomaterials (Basel)
Wang R, Xu Z, Yang B, Wang B.
europepmc   +1 more source

Absolute and relative dating of Cu and Pb-Zn mineralization in the Baiyangping area, Yunnan Province, SW China: Sm-Nd geochronology of calcite

, 2015
Zhichao Zou, Ruizhong Hu, Xian‐Wu Bi, Liyan Wu, Caixia Feng, Yongyong Tang   +5 more
openalex   +2 more sources

MISS diversity from saline lakes of Brazilian Pantanal: Origin, potential of preservation and comparison with examples of the Ediacaran‐Cambrian shallow depositional settings

Sedimentology, EarlyView.
ABSTRACT One of the largest wetlands on Earth, the Brazilian Pantanal contains roughly 10 000 natural lakes, about 1000 of which are hypersaline. In these environmentally stressful settings, animal life struggles to survive, while cyanobacteria form extensive mats.
Lucas V. Warren, Filipe G. Varejão, Lucas Inglez, Maria Julia Arrouy, Beatriz Christofoletti, Mario L. Assine   +5 more
wiley   +1 more source

Effect of perchlorate on biocementation capable bacteria and Martian bricks. [PDF]

PLoS One
Dubey S, Shukla S, Gupta N, Dixit R, Bhadury P, Kumar A.   +5 more
europepmc   +1 more source

Development of Holocene lacustrine microbialites on the Iberian Peninsula: Insights into environmental and depositional controls using X‐ray CT and petrography

Sedimentology, EarlyView.
ABSTRACT Microbial mats and microbialites are common in modern and ancient saline lacustrine environments and are highly responsive to biological and environmental factors. As such, they represent important sources of high‐resolution environmental data across a wide range of geological time. Nonetheless, interpretation of fossil mats is non‐trivial due
Connor Doyle, Juan Pablo Corella, Julia Behnsen, Mario Morellón, Celia Martín‐Puertas, Blas Valero Garcés, Stefan Schröder   +6 more
wiley   +1 more source

Calcite precipitation by the nitrogen-fixing cyanobacterium Anabaena sp. ATCC 33047. [PDF]

Commun Biol
Brininger CM, Tay JW, Johnson EB, Espelie E, Cameron JC.   +4 more
europepmc   +1 more source