Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
This report is a Geological Report, as that term is defined in the policies of the TSX Venture Exchange and has been prepared in connection with a fundamental acquisition filing pursuant to Policy 5.3 of the Exchange. Fremont Gold Ltd. has executed an option on the Vardenis Property, a gold, silver and potential copper porphyry prospect, located in Central Armenia, about 20km south of Lake Sevan, dated May 2023. The property is held by an Armenian company, Mendia Resources, LLC, who hold the 9399 hectare geological exploration permit, number EHT-29/370 “Vardenis”, Vayots Dzor region, Armenia, issued by the Ministry of Territorial Administration and Infrastructure, (MTAI), dated April 10th, 2003, valid for three years, renewable. Fremont has an exclusive option to earn 100% of this property, which occurs in stages over 3 years. <...>
In Liberia, Mano has interests in 3 mineral licences with gold exploration activity. To date most exploration has focused on the 100,000 hectare license known as the Bea Mountain Mineral Development Agreement (BEA-MDA) in western Liberia. Mano has a 100% interest in the BEA-MDA license subject to a 10% free carried interest and a 3% royalty in favour of the Republic of Liberia. The MCA reconnaissance license (1,500,000 hectares) is held under a Mineral Cooperation Agreement (MCA) with the Republic of Liberia.
Concepts and Methodologies of Environmental Hazards and Disasters Nicolas R. Dalezios, George P. Petropoulos, and Ioannis N. Faraslis
Indigenous Knowledge for Disaster Solutions in the Hilly State of Mizoram, Northeast India Kewat Sanjay Kumar, Awadhesh Kumar, Vinod Prasad Khanduri, and Sudhir Kumar Singh
Urban Risk and Resilience to Climate Change and Natural Hazards: A Perspective from Million-Plus Cities on the Indian Subcontinent Amit Kumar, Diksha, A. C. Pandey, and M. L. Khan
The Contribution of Earth Observation in Disaster Prediction, Management, and Mitigation: A Holistic View Varsha Pandey, Prashant K. Srivastava, and George P. Petropoulos
This book is a survey of techniques used in archaeological geology or as it is more widely known, today—geoarchaeology. It is less a discussion of theory or methodology with regard to the various geological techniques that are presented. It is not an exhaustive presentation of the diversity of earth science methods that can be utilized in the service of archaeology. Earth science can be used in many ways in archaeology.
The study of sediments and sedimentary rocks has come a long way from the early days Of field observations followed by a cursory examination of samples in the laboratory. Now many sophisticated techniques are applied to data collected in the field and to specimens back in the laboratory. Some of these techniques have been brought in from other branches of the earth sciences, while some have been specifically developed by sedimentologists.
Тектонический контроль, реконструкция и консервация тигелонгнанского месторождения порфиров и эпитермальных отложений меди (Au), Центральный Тибет, Китай
The newly discovered Tiegelongnan Cu (Au) deposit is a giant porphyry deposit overprinted by a high-sulfidation epithermal deposit in the western part of the Bangong–Nujiang metallogenic belt, Duolong district, central Tibet. It is mainly controlled by the tectonic movement of the Bangong–Nujiang Oceanic Plate (post-subduction extension). After the closure of the Bangong–Nujiang Ocean, porphyry intrusions emplaced at around 121 Ma in the Tiegelongnan area, which might be the result of continental crust thickening and the collision of Qiangtang and Lhasa terranes, based on the crustal radiogenic isotopic signature.
Cenozoic, mafic alkaline volcanic rocks throughout West Antarctica (WA) occupy diverse tectonic environments. On the Antarctic Peninsula (AP), late Miocene Pleistocene (7 to < 1 Ma) alkaline basaltic rocks were erupted < 1 to 45 million years after subduction ceased along the Pacific margin of the AP. In Marie Byrd Land (MBL), by contrast, alkaline basaltic volcanism has been semi-continuous from 25-30 Ma to the present, and occurs in the West Antarctic rift system. Together, these Antarctic tectono-magmatic associations are analogous to the Basin and Range, Sierran, and Coast Range batholith provinces.
ROBERTSON, A. H. F. & MOUNTRAKIS, D. Tectonic development of the Eastern Mediterranean region: an introduction
SMITH, A. G. Tethyan ophiolite emplacement, Africa to Europe motions, and Atlantic spreading
HIMMERKUS, F., REISCHMANN, T. & KOSTOPOULOS, D. Late Proterozoic and Silurian basement units within the Serbo-Macedonian Massif, northern Greece: the significance of terrane accretion in the Hellenides
YANEV, S., GONCIOOI3LU, M. C., GEDIK, I., LAKOVA, I., BONCHEVA, I., SACHANSKI, V., OKUYUCU, C., OZGf0L, N., TIMUR, E., MALIAKOV, Y. & SAYDAM, G. Stratigraphy, correlations and palaeogeography of Palaeozoic terranes of Bulgaria and NW Turkey: a review of recent data
ROMANO, S. S., BRIX, M. R., DORR, W., FIALA, J., KRENN, E. & ZULAUF, G. The Carboniferous to Jurassic evolution of the pre-Alpine basement of Crete: constraints from U-Pb and U-(Th)-Pb dating of orthogneiss, fission-track dating of zircon, structural and petrological data
Tectonic geomorphology is a relatively young subdiscipline of geomorphology. During the past decades, tectonic geo- morphology has developed into several main areas of emphasis including: landscape evolution of active plate margins; mountain building; development of active fault and fold systems; the evolution of passive margins, continental interiors and plateau uplift; volcanic geomorphology; paleoseismology and seismic hazard assessment; and interaction of tectonics, climate change, erosion, and polygenetic landscapes and hazard mitigation. These areas of focus reflect the growth of new studies in tectonics, climate and, Earth surfaces processes, and technological advances such as remote sensing, global positioning systems (GPSs), computers, geochronology, shallow geophysics and geochemistry.
The Irtysh shear zone (ISZ) is an important structure in the framework of the Central Asian Orogenic Belt (CAOB). It represents the site of final collision of Kazakhstan with Siberia during Hercynian times and records up to 1000 km of lateral displacement during subsequent reorganization in the CAOB edifice. We present new zircon U/Pb, apatite fission track and fault kinematic data along the ISZ and consequently derived its tectonic history with emphasis on its formation and reactivation episodes. Carboniferous (340–320 Ma) zircon U/Pb ages were obtained for the syn- and post-collisional Kalba–Narym intrusives, dating their emplacement in the framework of the Siberia–Kazakhstan collision. During this period, the ISZ experienced an ‘early brittle’ left-lateral, mainly transtensional stress regime. Late Carboniferous–Early Permian post-collisional intrusives were emplaced and the stress regime changed to a ‘late brittle regime, characterized by more compressional conditions, indicating rheological strengthening as a response to cessation of ductile shearing and cooling of the ISZ crust. Apatite fission track data and thermal history modeling reveal Late Cretaceous (100–70 Ma) cooling of the ISZ basement rocks as a response to denudation of a bordering Late Mesozoic Altai orogen. After this denudation event, the tectonic activity ceased during the Late Mesozoic–Early Cenozoic. A final step of cooling (from 25 Ma), exhibited by some of the thermal history models, may reflect reactivation of the ISZ and initiation of Cenozoic Altai mountain building. The Late Plio-Pleistocene phase of mountain building coincides with a new change in the Palaeostress field, characterized by minor transpressional, right-lateral shear conditions.
