Article
Environmental Studies
Rafael Navarro, Javier Martinez-Martinez, Jorge Fernandez Suarez, Enrique Alvarez-Areces, Jose Manuel Baltuille
Summary: This study provides an overview of the building stones and historical source quarries associated with UNESCO World Heritage Sites in Spain. It reveals uneven knowledge of the building stones and quarries, and emphasizes the importance of administrative protection, awareness, and promotion for the conservation of historical quarries within UNESCO WHS.
Article
Geochemistry & Geophysics
Olivia Mejias, Anita Parbhakar-Fox, Laura Jackson, Rick Valenta, Brian Townley
Summary: Indium is a critical element in low-carbon technology and is vulnerable to supply disruption. This review examines the current knowledge of indium cycling and opportunities for recovery. The highest indium content is found in Cu-rich parts of polymetallic deposits, while lower content is observed in deposits formed at low temperatures. There are 45 minerals with indium content, mainly hosted in polymetallic veins and associated with Sn systems. Indium accumulates in waters and sediments through oxidative chemical weathering and deposition from Zn smelting. In mine waste, indium can be thousands of times more enriched compared to natural environments. Sulphidic waste rock and tailings have the highest indium content, while smelting residues also contain significant amounts of indium. Further research is needed to understand the occurrence and dissolution of indium-bearing minerals and explore extraction methods.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2023)
Article
Environmental Sciences
Luigi Germinario, Chiaki T. Oguchi
Summary: This study focuses on the deterioration of stone in underground cultural heritage and geoheritage. It investigates the relationship between salt weathering and the properties of the rock and the environmental setting. The study uses Oya-ishi, a well-known building stone in Japan, as the material of study. It analyzes the effects of water and seasonal microclimate fluctuations on salt stability and crystallization, which ultimately lead to stone damage. The findings can help predict the severity of salt weathering and resulting stone damage.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Daniel Ballesteros, Pablo Caldevilla, Ramon Vila, Xose Carlos Barros, Laura Rodriguez-Rodriguez, Manuel Garcia-Avila, Elvira Sahuquillo, Miguel Llorente, Jose Bienvenido Diez, Mercedes Fuertes-Fuente, Susana M. Timon-Sanchez, Arturo de Lombera-Hermida, Ivan Alvarez, Irene Perez-Caceres, Manuel Acebo, Pilar Orche Amare, J. Horacio Garcia, Fidel Martin-Gonzalez, Martin Alemparte
Summary: This article presents a practical Geographic Information System (GIS) database for the management of Courel Mountains Geopark in Northwest Spain. The database includes a wide range of thematic maps and data compiled from various sources, supporting park management, scientific research, and geoconservation actions.
Article
Geochemistry & Geophysics
Jessica M. J. Walsh, Carl Spandler
Summary: In this study, Archean zircons from Western Australia were investigated to understand their role in the formation of unconformity-related heavy rare earth element (REE) ore deposits. It was found that the heavy REE inventory is primarily hosted in zircon with a wide range of major element totals and high concentrations of non-formula elements. The extensive radiation damage of the zircons makes them highly susceptible to alteration by subsequent hydrothermal fluid circulation.
Article
Microbiology
Katerina Sazanova, Marina S. Zelenskaya, Alexey D. Vlasov, Svetlana Yu Bobir, Kirill L. Yakkonen, Dmitry Yu Vlasov
Summary: The composition of superficial deposits and their role in the development of lithobiotic microorganism communities in urban environments were investigated. Superficial deposits contain low molecular weight organic components such as polyols, organic acids, mono- and disaccharides, as well as heavy metals including Fe, Mn, Zn, Cu, Pb, and Cd. Stress-resistant fungi and dark organotrophic bacteria were found to be the main inhabitants of surface sediments.
Article
Geology
Bolorchimeg N. Tunnell, Marek Locmelis, Cheryl Seeger, Ryan Mathur, Istvan Dunkl, Brandon Sullivan, Lisa Lori
Summary: This study focuses on the Pilot Knob deposits in the St. Francois Mountains igneous terrane in Missouri, USA, with the PKM and PKH deposits being the main focus. While the formation time and origin of the PKM and PKH deposits remain controversial, new U-Pb data provides a precise age for the PKM ore formation, and the PKH deposit is suggested to be hydrothermal in origin.
ORE GEOLOGY REVIEWS
(2021)
Review
Oceanography
Nihan Bulut, Hulya Yuceer
Summary: Managing underwater cultural heritage presents various challenges, including mapping, monitoring, access, presentation, and ownership. Most studies focus on evaluating management examples and policy development, conducted by researchers primarily from universities in Western countries. The importance of public participation, interpretation, and access is emphasized in many publications.
OCEAN & COASTAL MANAGEMENT
(2023)
Article
Geochemistry & Geophysics
Kuanysh Togizov, Lyudmila Issayeva, Daulet Muratkhanov, Madina Kurmangazhina, Maciej Swed, Agata Duczmal-Czernikiewicz
Summary: Rare earth elements in ion-adsorption clay-type deposits in Northern Kazakhstan were identified using mineralogical and geochemical methods. The study investigated the diversity and mineralogical properties of the Shok-Karagay deposit and Syrymbet ore fields, and found that the mineralogy and geochemistry played a crucial role in the deposits' architecture. The research combined mineralogical research and digital technology to characterize the deposits.
Article
Geochemistry & Geophysics
Bernd Lehmann
Summary: The majority of historically mined tin comes from a few tin ore provinces within larger granite belts, with primary tin ore deposits related to late granite phases. Alluvial placer deposits are usually the starting point for tin mining, and tin distribution is influenced by oxidation state and mineralogical differences. Tin characterizes the inner high-temperature part of larger zoned magmatic-hydrothermal systems, with specific chemical signatures in different parts of the system.
Article
Construction & Building Technology
Safaaaldeen Hussein Ali, Mohammed Fareed Sherzad, Ahmed Hameed Alomairi
Summary: This research focuses on the revival process of urban heritage in old cities after the war, with particular emphasis on the case study of Mosul. It examines the integrated strategies used and draws indicators from international experiences and organizations' studies to evaluate local projects in the center of the old city.
Article
Environmental Studies
Eleni Oikonomopoulou, Ekaterini T. Delegou, John Sayas, Anastasia Vythoulka, Antonia Moropoulou
Summary: This study investigates the correlation of tangible and intangible elements of a cultural landscape for sustainable development. The results demonstrate that integrated strategic planning can achieve the protection of natural and cultural wealth, as well as balanced economic development and social cohesion, leading to sustainable development.
Article
Mathematics
Tianhang Wang, Lu Zhao
Summary: In a time of rapid technological development, 3D stereoscopic images and virtual reality technology are widely used in art and design, as well as in the digital conservation and restoration of ancient buildings. Virtual reality art and digital restoration combine art and digital technology, and have great value in achieving real space and preserving ancient sites.
JOURNAL OF MATHEMATICS
(2022)
Article
Environmental Studies
Liisi Lees, Krista Karro, Francisco R. Barboza, Ann Ideon, Jonne Kotta, Triin Lepland, Maili Roio, Robert Aps
Summary: Maritime Spatial Planning (MSP) is a process of allocating space for human activities to support sustainable development of marine areas. Maritime cultural heritage (MCH) is often overlooked in this process, but it holds particular value for regional communities. Therefore, successful MSP requires active engagement of local communities and consideration of their maritime cultural heritage.
Article
Geosciences, Multidisciplinary
Hulya Yuceer, Alper Baba, Yasemin Ozcan Gonulal, Ozan Ustuk, Deniz Gercek, Selen Guler, Taygun Uzelli
Summary: This study aims to provide an accurate assessment of groundwater heritage and suggest conservation proposals through the case of the historic wells of Kadiovacik village in the Urla district of Izmir. While these wells are generally considered less important as heritage assets based on physical features, a comprehensive evaluation reveals their high significance for the village community.
Article
Geology
Petros Koutsovitis, Konstantinos Soukis, Panagiotis Voudouris, Stylianos Lozios, Theodoros Ntaflos, Christina Stouraiti, Nikolaos Koukouzas
Summary: The study examines the geological features of Anafi Island in Greece and demonstrates the similarity of the granitoids on Anafi Island to the Late Cretaceous granitoid intrusive rocks from East Crete and Donousa island. Research findings show that the crystallization conditions of intermediate granitoids are higher than those of felsic granitoids, and the depth of rock formation is approximately 12 kilometers.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geosciences, Multidisciplinary
B. Grasemann, D. A. Schneider, K. Soukis, V Roche, B. Hubmann
Summary: The study investigates the tectonic history of the central Dodecanese Islands, particularly the islands of Kalymnos and Telendos. It identifies different tectonic units on the islands and their correlation with the Aegean and western Anatolian. The research reveals the paleogeographic position of the islands and their escape from subduction and high-pressure metamorphism.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2022)
Article
Metallurgy & Metallurgical Engineering
Alexandra Gogou, Constantinos Mavrogonatos, Marianthi Anastasatou, Panagiotis Voudouris, Stephen Chryssoulis, Michael Stamatakis
Summary: Beneficiation tests on kyanite-rich rock samples from Thassos Island, Greece showed that the material contains up to 95% kyanite, meeting the chemical composition standards of the Chinese and American industry. Further testing on a semi-industrial scale is recommended to fully establish its industrial potential.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Geochemistry & Geophysics
Aurelie Louis-Napoleon, Thomas Bonometti, Muriel Gerbault, Roland Martin, Olivier Vanderhaeghe
Summary: We numerically investigate the development of crustal scale diapirism and convection in a heterogeneous continental crust, independently from regional tectonics. The study focuses on a hot crust with unmolten and partially molten domains, using the volume of fluid method to capture the behavior of deformable inclusions. Different flow regimes are observed, ranging from suspension to layering and diapiric regimes, depending on the properties of the unmolten and partially molten rock. These findings provide insights into the physical parameters required for the segregation of deformable inclusions in a partially molten crust and contribute to the understanding of continental crust differentiation.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Christos L. Stergiou, Vasilios Melfos, Panagiotis Voudouris, Lambrini Papadopoulou, Paul G. Spry, Irena Peytcheva, Dimitrina Dimitrova, Elitsa Stefanova
Summary: The epithermal quartz-stibnite veins on the eastern side of the Gerakario Cu-Au porphyry deposit in the Kilkis ore district, northern Greece, contain significant concentrations of critical and rare metals and show evidence of fluid boiling.
APPLIED SCIENCES-BASEL
(2022)
Article
Geology
Christina Stouraiti, Stylianos Lozios, Konstantinos Soukis, Constantinos Mavrogonatos, Harilaos Tsikos, Panagiotis Voudouris, Hao Wang, Christoforos Zamparas, Konstantinos Kollias
Summary: The Triassic volcaniclastic sequence in the Cycladic Blueschist Unit (CBU) of Greece contains metamorphosed Mn mineralization. This study focuses on the Mn metallogenic system in the CBU, specifically in the Varnavas area and at Mparades Hill, Andros island. The Mn mineralogy and geochemistry at these two sites suggest a genetic link to hydrothermal activity in a back-arc rift setting. Although the Mn concentrations and distribution of the studied assemblages are not economically viable, there is potential for future discovery of commercially viable Mn ores in similar geotectonic and metallogenic regions.
ORE GEOLOGY REVIEWS
(2022)
Article
Geochemistry & Geophysics
Christos Karkalis, Andreas Magganas, Petros Koutsovitis, Panagiotis Pomonis, Theodoros Ntaflos
Summary: In the Pagondas and Kimi areas of central Evia Island, Greece, ultramafic rocks of ophiolitic origin are cut by rodingite dikes. These rodingites can be classified into different types based on their protoliths, and they underwent three successive stages of metasomatic processes. These processes affected different lithotypes and are considered to be important examples of metasomatism.
Article
Geochemistry & Geophysics
Maria Nikopoulou, Stefanos Karampelas, Eloise Gaillou, Ugo Hennebois, Farida Maouche, Annabelle Herreweghe, Lambrini Papadopoulou, Vasilios Melfos, Nikolaos Kantiranis, Didier Nectoux, Aurelien Delaunay
Summary: In this study, rough emerald single crystals and rough emeralds in the host rock from the ruins of Alexandria and from Mount Zabargad in Egypt were investigated. Non-destructive spectroscopic and chemical methods were used to characterize the samples. The results showed that Egyptian emeralds contain H2O molecules and relatively high concentrations of alkali ions, and are colored by chromium and iron. Inclusions and associated minerals were also identified in these historic emeralds from Egypt. This study contributes to the characterization of emeralds of archaeological significance.
Article
Geochemistry & Geophysics
Stylianos Tombros, Sotirios Kokkalas, Stavros Triantafyllidis, Michalis Fitros, Harilaos Tsikos, Lambrini Papadopoulou, Panagiotis Voudouris, Degao Zhai, Vasileios Skliros, Maria Perraki, Konstantinos Kappis, Aikaterini Spiliopoulou, Xenofon Simos, Joan Papavasiliou, Anthony Williams-Jones
Summary: Two world-first examples of mangan oxide skarns, the Panorama skarn of Drama and the Thapsana skarn of Paros Island, were investigated in this study. The formation of these skarns is associated with manganese and influenced by interactions between magma and rocks. Isotopic evidence suggests that the source of manganese is primarily from granitic rocks. The results of this study propose a new class of mangan-oxide mineralized skarn as a distinct candidate for skarn mineralization.
Article
Geosciences, Multidisciplinary
Christos L. Stergiou, Grigorios-Aarne Sakellaris, Vasilios Melfos, Panagiotis Voudouris, Lambrini Papadopoulou, Nikolaos Kantiranis, Evaggelos Skoupras
Summary: The stibnite mineralization at Rizana in northern Greece occurs along a NE-SW-trending brittle shear-zone, which transects a two-mica and an augen-gneiss of the Vertiskos Unit. The mineralization is in the form of veins, discordant lodes and disseminations, with a main ore mineral assemblage of stibnite + berthierite + sphalerite + pyrite + chalcopyrite + native antimony. Quartz, barite, and ankerite are the gangue minerals. The mineralization was formed under a limited range of temperatures and salinities, with low to slightly moderate salinities and low homogenization temperatures.
Article
Geochemistry & Geophysics
Louise Lenoir, Thomas Blaise, Diana Chourio-Camacho, Antonin Richard, Alexandre Tarantola, Pierre Agrinier, Thomas Rigaudier, Gael Monvoisin, Gerard Bardoux, Benjamin Brigaud, Jocelyn Barbarand
Summary: This study provides new constraints on the fluid flow system at the origin of two F-Ba deposits located at the unconformity between the south of the Paris Basin and the northern edge of the French Massif Central. Microthermometry and bulk crush-leach analyses were used to determine isotope ratios of mineralizing fluids and the composition of fluid inclusions hosted by fluorite. The findings suggest that the mineralizing fluids originated from a brine, likely Triassic evaporated seawater compatible with nearby dolomitic facies. The composition of the brine evolved from hydrothermal alteration of the Variscan basement and partial dissolution and replacement of the host sedimentary rocks. The study also suggests chlorine isotope fractionation by ion filtration in clay-rich horizons. Fluorite crystallized at temperatures higher than the host Triassic sedimentary rocks. The ascending brines in the Early Cretaceous experienced pressure and temperature drops and possibly mixed with SO4-rich pore water of the sedimentary rocks, resulting in precipitation of silica followed by fluorite and barite, forming stratabound deposits similar to those found in Western Europe.
MINERALIUM DEPOSITA
(2023)
Article
Geosciences, Multidisciplinary
Kyriaki Drymoni, John Browning, Panagiotis Pomonis, Andreas Magganas
Summary: This study analyzes the eruptions of the Santorini volcano in Greece during the 20th century, using field reports and historical accounts to gain insight into the eruption dynamics and evolution. It provides a more complete description of the eruption dynamics, such as explosion intensity, lava flows, vent morphological changes, and surface fracturing, which enhances the forecasting of potential future eruptions.
BULLETIN OF VOLCANOLOGY
(2023)