Results 1 to 10 of about 45 (44)

Geology and geochemistry of jasperoids from the ‘Montaña de Manganeso’ district, San Luis Potosí, north-central Mexico

Revista Mexicana de Ciencias Geológicas, 2021
Large outcrops of jasperoids occur in the ‘Montaña de Manganeso’ mining district in north-central Mexico. They range from massive manganiferous jasperoids to highly brecciated, hematitic jasperoid. The jasperoids of ‘Montaña de Manganeso’ occur mainly as
Joseph Madondo, Carles Canet, Fernando Núñez-Useche, Eduardo González-Partida   +3 more
doaj   +1 more source

Identifying and Comparing the Exploration Criteria at Sari Gunay Gold, Dalli Copper-Gold and Zarshuran Gold Deposits in Zagros Orogen

Journal of Economic Geology, 2023
There are important deposits such as Sari Gunay epithermal gold, Dalli porphyry copper-gold, and Zarshuran Carlin deposits with a few common exploration features in the Zagros metallogenic province of Iran. This study used geological maps, remote sensing,
Pouya Asadi Haroni, Omid Asghari, Mirsaleh Mirmohammadi , Hooshang Asadi Haroni   +3 more
doaj   +1 more source

Mineralogy, geochemistry, and genesis of Mn mineralization associated with the Noorabad Delfan radiolarites, Northwestern Lorestan

Journal of Economic Geology, 2020
Introduction The Borujerd-Kermanshah ophiolite is a part of the ophiolite complex belonging to the Zagros Mountains and is a part of the Alpes-Himalayan belt (Alavi, 1994). The Boroujerd-Kermanshah Ophiolite complex consists of serpentinized peridotite,
Shahryar Mahmoudi, Pourya Geravandi, Majid Ghasemi Siani, Kazem Gholizadeh   +3 more
doaj   +1 more source

Isotopic composition of lead from dikes and ores of the Vorontsovkoe gold deposit (Northern Urals)

Литосфера, 2020
Research subject. The Vorontsovskoe deposit belongs to gold deposits, in which gold is disseminated finely across carbonate-terrigenous rocks (Carlin-type). This study was aimed at identifying the sources of lead in various ore types (in skarn, jasperoid,
V. V. Murzin, I. V. Vikentyev, O. B. Azovskova, M. Yu. Rovnushkin, M. V. Streletskaya, V. I. Blokov, O. V. Vikent’eva   +6 more
doaj   +1 more source

The non-utilitarian objects from the initial Upper Paleolithic Ushbulak site in eastern Kazakhstan

UISPP Journal, 2021
The Middle to Upper Palaeolithic transition shows numerous indications for a manifestation of abstract thinking and symbolic behavior. In northern Central Asia this process is illustrated by the appearance and distribution of personal ornaments (pendants,
Lidiya V. Zotkina, Anton A. Anoykin, Vladimir M. Kharevich, Galina D. Pavlenok   +3 more
doaj   +1 more source

The role of right-lateral shear zone and folding-related fractures in development of Zarshuran gold deposit, Takht-e-Soleyman complex, northern Takab

Journal of Economic Geology, 2020
Introduction The Zarshuran gold deposit is located in the Takht-e-Soleyman complex, NW Iran. It is formed in the Iman Khan NW-trending anticline (Mehrabi et al., 1999; Samimi, 1992).
Reza Alipoor, Ebrahim Tale Fazel , Mahdi Farhani Moghadam   +2 more
doaj   +1 more source

Gold mineralization of the Arctic Belt of the Russian Far East

Руды и металлы
The gold ore-bearing potential of the Early Cretaceous Arctic orogenic belt of the Far Eastern Arctic is characterized. The gold mineralization is represented by the Au-quartz vein, Au-sulfide disseminated in folded and crushed zones, Au-Bi (gold-rare ...
Goryachev N. A.
doaj   +1 more source

Trace Elements and Sulfur Isotopes of Sulfides at the Leon Sediment‐Hosted Gold Deposit, Ratatotok District, North Sulawesi, Indonesia: Constraints on the Genesis of Ore Formation

Resource Geology, Volume 76, Issue 1, January/December 2026.
The Leon deposit is interpreted as a sediment‐hosted gold deposit with a probable distal intrusion‐centered setting. Hydrothermal fluids migrated through fractures and bedding planes, likely leached sulfur and metals from andesitic rocks, and formed orebodies along bedding planes and at limestone–andesite contacts controlled by permeability contrasts ...
Muhammad Arba Azzaman, Ryohei Takahashi, Pearlyn Manalo, Andrea Agangi, Manuel Nopeia, Hinako Sato, Arifudin Idrus, Doly R. Simbolon, Renaldi Suhendra   +8 more
wiley   +1 more source

Formation of Macro- and Micro Use-Wear Traces on Tools from Different Stone Raw Materials: Experiences from a Comparative Analysis

Вестник Новосибирского государственного университета. Серия: история, филология
Purpose. The article is devoted to the study of the regularities of the formation of macro and micro use-wear traces on experimental tools made of high-quality stone raw materials from the Altai region.Results.
A. Yu. Fedorchenko, E. V. Levina, N. E. Belousova   +2 more
doaj   +1 more source

Sedimentary ancient DNA from caves: Challenges and opportunities

Journal of Quaternary Science, Volume 40, Issue 4, Page 565-578, May 2025.
Abstract Caves are unique depositional environments that hold great potential for long‐term preservation of DNA due to their typically cool and stable internal climates, buffered from external climate extremes. Bones from caves have long been recognised as an excellent source of ancient DNA, yet the potential for DNA preservation in cave sediments ...
Siobhan Evans, Bastien Llamas, Jamie R. Wood   +2 more
wiley   +1 more source