Results 131 to 140 of about 5,408 (193)

Estimating past fluid pH and evaporative conditions in Gale crater using terrestrial analog samples from Death Valley, CA

Meteoritics &Planetary Science, EarlyView.
Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das, P. J. Gasda, K. Berlo, R. J. Leveille, M. A. Nellessen, L. Crossey, E. Peterson, R. Beal, A. L. Reyes‐Newell, S. M. Clegg, N. L. Lanza, O. Gasnault   +11 more
wiley   +1 more source

Subducted sediments hidden in the upper-mantle X-discontinuities. [PDF]

Nat Commun
Wang B, Liu J, Zhang Y, Liu L, Zhou Z, Tian Y.   +5 more
europepmc   +1 more source

A Microkrystite from the Australasian Tektite/Microtektite Strewn Field

Meteoritics &Planetary Science, EarlyView.
Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio, Luigi Folco, Matteo Masotta, Ana Černok, Enrico Mugnaioli   +4 more
wiley   +1 more source

Phosphatic rock weathering and agricultural activities driving the dynamics of potentially toxic elements in surface soil of weathered zone. [PDF]

PeerJ
Zhang H, Liao C, Wang C, Ye X, Du B, Yu Y, Zhang L.   +6 more
europepmc   +1 more source

Field‐based evaluation of glass cullet as a supplementary sediment source for coastal restoration

Restoration Ecology, EarlyView.
There is an ever‐increasing demand for sand to support projects like beach nourishment and dune restoration, but dredging and mining sand causes environmental damage. Demonstrating the environmental and ecological compatibility of crushed and ground glass known as cullet to support coastal restoration projects could simultaneously divert waste from ...
Lily S. Pfeifer, Charles A. Schutte
wiley   +1 more source

Heavy Metal Pollution in River Sediments: Risk Assessment, Source Apportionment, and Remediation-A Review Focusing on Chinese River Basins. [PDF]

Toxics
Tan Y, Qin J, Tao B, Zhao H, Deng J, Ling J, Dai M, Chen X.   +7 more
europepmc   +1 more source

Impacts of reclamation approaches on plant establishment in an arid environment during copper mine revegetation

Restoration Ecology, EarlyView.
Abstract Introduction Revegetation using native vegetation is a commonly used technique to reclaim landscapes degraded by mining activities. Revegetation efforts in the arid Southwestern United States face physical, geochemical, hydrological, and biological challenges unique to drylands.
Sierra T. Lauman, Catherine G. Fontana, Elise S. Gornish, Julia W. Neilson   +3 more
wiley   +1 more source

Hidden ecological risks in reservoir sediments: grain-size dependent enrichment of toxic metals in the black sea basin. [PDF]

Environ Geochem Health
Özşeker K, Terzi Y, Erüz C, Ismail NP.   +3 more
europepmc   +1 more source

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 more
wiley   +1 more source

Provenance and economic potential of Egyptian black sands: integrated mineralogical and geochemical insights. [PDF]

Sci Rep
Khedr MZ, Zaghloul H, Takazawa E, El-Nahas H, Azer MK, Mansour S, Zafar T, El-Shafei SA.   +7 more
europepmc   +1 more source