Results 71 to 80 of about 478,532 (305)

Lithogenesis on peneplaned сontinented platform of Kazakhstan and Siberia during the Cretaceous-Paleogene boundary epoch

Литосфера, 2019
Research subject. The inner structure, composition, and genesis of the poorly studied formation of weathering crusts are studied with reference to peneplaned platform territories in Kazakhstan and Siberia during the Cretaceous-Paleogene boundary epoch ...
Yu. G. Tsekhovskii, В. А. Bogatyrev, V. V. Zhukov   +2 more
doaj   +1 more source

The development of numerical forecasting systems of primary sources of gold on the results of placer sampling in the example Vagran placer cluster (North Urals)

Georesursy, 2020
Based on the results of field research, as well as data from stock reports, two types of placer gold were identified within the Vagran placer cluster, which are indicators of primary mineralization.
Alexander V. Lalomov, Anna A. Bochneva , Roman M. Chefranov   +2 more
doaj   +1 more source

Giovanni Antonio Scopoli's De Hydrargyro Idriensi Tentamina (1761): Mercury Mining, Mercurialism, and Preventive Reasoning in Eighteenth‐Century Occupational Medicine

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Giovanni Antonio Scopoli (1723–1788), a physician‐naturalist of the Enlightenment, is primarily remembered for his contributions to botany and entomology. Less attention has been paid to his medical work De hydrargyro Idriensi Tentamina physico‐chymico‐medica (1761), written during his fifteen years of service as physician at the mercury mines
Alberto Zanatta, Paola Mason, Sofia Bollini, Giovanni Magno   +3 more
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

The Role of Placer Deposits in Ensuring the Reproduction of the Mineral Resource Base of Scarce Types of Strategic Mineral Raw Materials in Russia at the Present Stage

Russian Journal of Earth Sciences
Placer deposits had (and for a number of components still have) an important role in providing strategic types of mineral resource base for both Russia and the world as a whole.
Bortnikov N. S., Volkov A. V., Lalomov A. V., Bochneva A. A., Ivanova Yu. N., Lalomov D. A.   +5 more
doaj   +1 more source

First Record of Tasmanian Devils in the Pilbara: Late Quaternary Subfossils From Juukan Gorge, Puutu Kunti Kurrama Country, and Insights Into Human—Faunal Relationships and Extinction

Archaeology in Oceania, EarlyView.
ABSTRACT This study presents the first unequivocal evidence for the presence of Tasmanian devils (Sarcophilus harrisii) in the Pilbara region of northwestern Australia, based on material recovered from archaeological excavations at Juukan Gorge on Puutu Kunti Kurrama and Pinikura country.
Timothy J. Churchill, Michael Slack, Elise Matheson, Liam Neill, Wanchese M. Saktura, Gavin Ashburton   +5 more
wiley   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Peculiarities of formation, isomorphism and geochemistry of trace elements of sphalerite and wurtzite unusual varieties from the Goniatite occurrence (Pai-Khoi Ridge, Nenets Autonomous District)

Записки Горного института
A unique Mn-, Cd-bearing sphalerite from quartz-calcite veins in the coal-bearing series (Visean C1v) marine sediments in a 50 km segment of the middle course of the Silova-Yakha River in the Arctic zone of the European part of Russia (Pai-Khoi Ridge ...
Aleksandr B. Makeyev, Ilya V. Vikentyev, Elena V. Kovalchuk, Vera D. Abramova, Vsevolod Yu. Prokofyev   +4 more
doaj  

Petrology and geochemistry of volcanic rocks of Cheshmeh Khuri and Shekasteh Sabz areas, Khur, northwest of Birjand [PDF]

پترولوژی, 2016
Khur area is located in east of Iran and northwest of Birjand. The area comprises outcrops of Eocene to Oligocene volcanics with basaltic andesite to rhyolite composition, which were intruded by subvolcanic and intrusive bodies of granodiorite to gabbro.
Maryam Javidi Moghaddam, Mohammad Hassan Karimpour, Khosrow Ebrahimi Nasrabadi, Azadeh Malekzadeh Shafaroudi, Mohammad Reza Hidarian Shahri   +4 more
doaj  

SIMS Dating of Granite-Hosted Uranium Deposits in the Xiazhuang Ore Field and Its Geological Significance

Using pitchblende uranium ore GBW04420 as the standard material and through the secondary ion mass spectrometry (SIMS) technical method, the in situ U-Pb isotopic chronology characteristics of the main granite-type uranium deposits in the Xiazhuang ore ...
Mingyi Liu, Xin Zheng, Guoquan Sun, Yu Hou, Mengdi Yang, Xiaorui Zhang, Yaxin Ma, Bailin Wu, Wanying Zhang   +8 more
core   +1 more source