Results 21 to 30 of about 36,250 (203)

Petrogenetic Study on Ultramafic Rocks from Waturapa and Surrounding Areas, South Konawe Regency, Southeast Sulawesi Province

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2023
The petrogenesis study of ultramafic igneous rocks in the South Konawe Region has been carried out by several previous researchers, however, petrogenesis of ultramafic igneous rocks in the Waturapa Region has never been carried out in detail.
Hasria, Masri, Muhammad Arba Azzaman, Muhamad Jerniawan   +3 more
doaj   +1 more source

Plant Functional Traits on Tropical Ultramafic Habitats Affected by Fire and Mining: Insights for Reclamation

Diversity, 2020
Biodiversity-rich tropical ultramafic areas are currently being impacted by land clearing and particularly by mine activities. The reclamation of ultramafic degraded areas requires a knowledge of pioneer plant species.
Celestino Quintela-Sabarís, Michel-Pierre Faucon, Rimi Repin, John B. Sugau, Reuben Nilus, Guillaume Echevarria, Sophie Leguédois   +6 more
doaj   +1 more source

Element Mobilization During Weathering Process of Ultramafic Complex in North Konawe Regency, Southeast Sulawesi Based on A Profile from Asera

Indonesian Journal on Geoscience, 2018
DOI: 10.17014/ijog.5.3.277-290The North Konawe Regency, located in the northern part of the southeast arm of Sulawesi Province, is occupied mainly by Ophiolite Complex.
Ronaldo Irzon, Baharuddin Abdullah
doaj   +1 more source

Multi-stage serpentinization of ultramafic rocks in the Manlay Ophiolite, southern Mongolia

Mongolian Geoscientist, 2021
Serpentinization of ultramafic rocks in ophiolites is key to understanding the global cycle of elements and changes in the physical properties of lithospheric mantle.
Amarbayar Nomuulin, Noriyoshi Tsuchiya, Otgonbayar Dandar, Atsushi Okamoto, Masaoki Uno, Undarmaa Batsaikhan, Jiajie Wang   +6 more
doaj   +1 more source

Feasible Metabolic Schema Associated with High pH Springs in the Philippines

Frontiers in Microbiology, 2015
A field campaign targeting high pH springs in the Zambales and Palawan Ophiolites of the Philippines was conducted in 2012-2013, and enabled description of several springs sourced in altered pillow basalts, gabbros, and peridotites.
DAWN eCARDACE, D'Arcy Renee Meyer-Dombard, Kristin eWoycheese, Carlo A. Arcilla   +3 more
doaj   +1 more source

Prebiotic Organic Microstructures [PDF]

, 2011
Micro- and sub-micrometer spheres, tubules and fiber-filament soft structures have been synthesized in our experiments conducted with 3 MeV proton irradiations of a mixture of simple inorganic constituents, CO, N2 and H2O.
A Yoshihara, AM Hessler, CJ Hale, DI Foustoukos, F Klein, H Kurihara, J Takahashi, K Kobayashi, K Kobayashi, K Kobayashi, K Kobayashi, K Kvenvolden, Kensei Kobayashi, M Yoshizaki, Marie-Paule Bassez, MP Bassez, MP Bassez, O Botta, S Miyakawa, SL Seewald, T McCollom, T McCollom, Y Takano, Y Takano, Y Takano, Y Takano, Yoshinori Takano   +26 more
core   +2 more sources

Analysis of Ultramafic Rocks Weathering Level Using the Magnetic Susceptibility in Konawe Regency, Southeast Sulawesi, Indonesia

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2020
The Konawe region is part of the Sulawesi Southeast Arm ophiolite belt where ultramafic rocks are exposed in the form of dunite and peridotite. The formation of nickel deposits is closely related to the weathering process of ultramafic rocks as a source ...
Jahidin, LO. Ngkoimani, LM. Iradat Salihin, Hasria, Erzam S. Hasan, Irfan Ido, Suryawan Asfar   +6 more
doaj   +1 more source

Decreasing extents of Archean serpentinization contributed to the rise of an oxidized atmosphere

Nature Communications, 2021
Throughout the Archean, H2 generation via low-temperature ultramafic serpentinization likely helped prevent atmospheric O2 accumulation and continued until the abundance of ultramafic rocks diminished setting the stage for the Great Oxidation Event.
James Andrew M. Leong, Tucker Ely, Everett L. Shock   +2 more
doaj   +1 more source

Magma feeding paleochannel in the Monchegorsk ore region: geochemistry, isotope U-Pb and Sm-Nd analysis (Kola region, Russia)

Записки Горного института, 2022
A comprehensive study of a 340 m thick lenticular-sheet body of ultramafic composition penetrated by structural well M-1 at a depth of about 2.2 km was accomplished.
Valeriy F. Smolkin, Artem V. Mokrushin, Tamara B. Bayanova, Pavel A. Serov, Aleksey A. Ariskin   +4 more
doaj   +1 more source

Near-seafloor magnetic mapping of off-axis lava flows near the Kairei and Yokoniwa hydrothermal vent fields in the Central Indian Ridge [PDF]

, 2018
The Kairei (KHF) and Yokoniwa hydrothermal fields (YHF) are hosted in mafic as well as ultramafic rocks distributed at an off-axis volcanic knoll of the Central Indian Ridge.
Kyoko Okino, Masakazu Fujii
core   +2 more sources