Results 41 to 50 of about 12,638 (229)

Mesostructural paragenesises of the southeastern part of the Ebeta antiform (Northern Kazakhstan)

Известия высших учебных заведений: Геология и разведка, 2015
Data on a geoiogical structure and evolution of mesostructural complexes of a southeast part of the Ebeta antiformhas been provided. Multistage nature of the deformations and a metamorphism of a Mamyt metamorphic complex and its frame have been ...
B. G. Golionko, O. A. Artemova
doaj   +1 more source

Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin forearcs: evidence from Leg 125 fluids and serpentinites

, 1992
Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indicating that low-temperature seawater-peridotite ...
Hall, G. E. M., Parkinson, I. J., Pearce, J. A.   +2 more
core   +2 more sources

Geosite Assessment in the Beigua UNESCO Global Geopark (Liguria, Italy): A Case Study in Linking Geoheritage with Education, Tourism, and Community Involvement

Land, 2022
The inventory and the assessment of geosites plays a very important role in highlighting scientific, geotouristic, and geoeducational potential, as well as the ability to identify any criticalities and vulnerabilities of the geological heritage of a ...
Pietro Marescotti, Giulia Castello, Antonino Briguglio, Maria Cristina Caprioglio, Laura Crispini, Marco Firpo   +5 more
doaj   +1 more source

Between the Indian Ocean and the Gulf: Ceramics From Ḥattā Oasis in the Emirate of Dubai

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT This study presents the ceramic finds from archaeological investigations conducted in 2024 at two settlements: ‘Islamic Village' and Suhaila 2, one of a number of mountain villages of the Late Islamic period within the Ḥattā Oasis: a high‐altitude exclave in the Emirate of Dubai. The sites are located on the northeastern slopes of Jabal Qallāt
Seth M. N. Priestman, Agnese Kukela, Mansour Boraik, Hassan Mohammed Zein   +3 more
wiley   +1 more source

PLATINUM METAL MINERALIZATION OF THE SOUTH URALS MAGMATIC COMPLEXES: GEOLOGICAL AND GEODYNAMIC CHARACTERISTICS OF FORMATIONS, PROBLEMS OF THEIR GENESIS, AND PROSPECTS

Геодинамика и тектонофизика, 2021
In the South Urals, we have identified and investigated two platinum-bearing formations – ophiolite chromitebearing complexes, and the Khudolaz differentiated mafic-ultramafic complex with sulfide Cu-Ni mineralization.
I. R. Rakhimov, D. E. Saveliev, A. V. Vishnevskiy   +2 more
doaj   +1 more source

Temporal relations between mineral deposits and global tectonic cycles [PDF]

, 2013
Natural Environment Research Council (grant NE/J021822/1) supported this research.Mineral deposits are heterogeneously distributed in both space and time, with variations reflecting tectonic setting, evolving environmental conditions, as in the ...
Cawood, Peter Anthony, Hawkesworth, Chris   +1 more
core   +2 more sources

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

Detachment Fault‐Hosted Subduction Re‐Initiation of the (Ultra)Slow‐Spreading Western Neo‐Tethys in the Jurassic

Geochemistry, Geophysics, Geosystems
Subduction initiation in oceans is key to understanding regional and global plate tectonics and ocean basin dynamics; however, its genetic mechanism is still enigmatic.
Tong Liu, Chuan‐Zhou Liu, Fu‐Yuan Wu, Gültekin Topuz, Bo Wan, Jia‐Min Wang, Guohui Chen   +6 more
doaj   +1 more source

Trace element geochemistry of peridotites from the Izu-Bonin-Mariana Forearc, Leg 125

, 1992
Trace element analyses (first-series transition elements, Ti, Rb, Sr, Zr, Y, Nb, and REE) were carried out on whole rocks and minerals from 10 peridotite samples from both Conical Seamount in the Mariana forearc and Torishima Forearc Seamount in the Izu ...
Ingram, G., Johnson, K. T. M., Parkinson, I. J., Pearce, J. A., Thirlwall, M. F.   +4 more
core   +1 more source

P–T Modelling Constrains the Depth of Emplacement of the Porto Azzurro Pluton and Implies Minor Exhumation Caused by the Zuccale Fault (Island of Elba, Italy)

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi, Marco Bonini, Matteo Lupi, Chiara Del Ventisette, Domenico Montanari   +4 more
wiley   +1 more source