Article
Geology
Per Lindh, Polina Lemenkova
Summary: This paper investigates the effects of adding varied amounts of Portland cement to soil samples on the leaching of tributyltin (TBT) from contaminated marine sediments and evaluates the pH level. The study finds that leaching reduces over time and the ratio of Portland cement influences the leaching speed.
Article
Geology
Shan Liu, Yu Zhang, Guoliang Ai, Xilin Xue, Hongbin Li, Sajjad Ahmad Shah, Naihui Wang, Xi Chen
Summary: The study focused on the Qingshuitang Pb-Zn deposit in the central Qinhang Ore Belt, revealing four mineralization stages with temperatures ranging from 82 to 204 degrees Celsius and low sulfur fugacity, consistent with MVT deposits. Additionally, the elemental contents in the sphalerite at Qingshuitang were also similar to those in MVT deposits, suggesting it may be classified as an MVT deposit.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Wei Wang, Peter A. Cawood, Christopher J. Spencer, Manoj K. Pandit, Jun-Hong Zhao, Xiao-Ping Xia, Jian-Ping Zheng, Gui-Mei Lu
Summary: This study documents the presence of O-18-depleted magmatism in India, which is similar to magmas reported from Australia, South America, and northern China. The widespread occurrence of low O-18 magmas suggests the emergence of substantial volumes of continental crust, possibly due to high-temperature meteoric water-rock interaction. The timing of this magmatism coincides with the development of subaerial large igneous provinces, a downward shift in isotopic values, and an intermittent increase in atmospheric oxygen, indicating a significant event in Earth's history.
Article
Geology
Jacob A. Mulder, Peter A. Cawood
Summary: This study analyzes a global compilation of monazite ages and finds a strong correlation with zircon ages, further supporting the link between collisional orogenesis and the preserved record of continental growth. The findings also suggest that the continental crust provides a preservational, rather than generational, archive of crustal growth.
Article
Geology
Peng Song, Tao Wang, Ying Tong, Jianjun Zhang, He Huang
Summary: This study presents new magmatic evidence for the tectonic transition from subduction to collision (arc-arc collision) along the Kalamaili suture zone in the southwestern Central Asian Orogenic Belt. It reveals the petrogenesis and tectonic settings of late Carboniferous intrusive rocks, providing insights into the accretionary orogenic processes and the switch in tectonic environments.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geology
Hu Huang, Magdalena H. Huyskens, Qing-Zhu Yin, Peter A. Cawood, Mingcai Hou, Jianghai Yang, Fuhao Xiong, Yuansheng Du, Chenchen Yang
Summary: This study provides new insights into the duration and eruption rates of the Emeishan large igneous province, suggesting its possible role in biotic crises and paleoclimate changes.
Article
Geology
X. P. Yuan, K. L. Huppert, J. Braun, X. Shen, J. Liu-Zeng, L. Guerit, S. G. Wolf, J. F. Zhang, M. Jolivet
Summary: This study suggests that the high-elevation, low-relief surfaces in the southeast Tibetan Plateau are a result of mountain growth and do not require a special process to form. The low-relief surfaces can persist for long periods of time due to lack of necessary drainage networks.
Article
Geology
Michael M. Joachimski, Johann Mueller, Timothy M. Gallagher, Gregor Mathes, Daoliang L. Chu, Fedor Mouraviev, Vladimir Silantiev, Yadong D. Sun, Jinnan N. Tong
Summary: The study reconstructed the atmospheric CO2 history from the late Permian to the Early Triassic, showing a significant increase in CO2 concentrations during the warm periods, potentially contributing to the end-Permian mass extinction event.
Article
Geochemistry & Geophysics
Liang Xue, Pengcheng Liu, Yun Zhang
Summary: This article introduces nine relatively mature technologies for heavy oil development, dividing them into thermal recovery and cold recovery categories. The article points out that thermal compounding, cold mining development, and nanomaterial applications will be the future development trends for heavy oil development.
Article
Geology
Lishuang Liu, Fulai Liu, Jinghui Guo, Pinghua Liu, Wei Wang, Jia Cai
Summary: This study identifies non-UHP metasedimentary blocks in the Weihai terrane of the Sulu ultrahigh-pressure belt for the first time. These rocks originated from the North China Block and were involved in the Triassic collision-subduction process, without being carried to deep mantle depths. The findings provide new evidence for understanding the tectonic evolution of the Sulu UHP orogenic belt.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geology
Vicente Gilabert, Sietske J. Batenburg, Ignacio Arenillas, Jose A. Arz
Summary: Untangling the timing of the environmental effects of Deccan volcanism with respect to the Chicxulub impact is crucial for understanding their contributions to climate change. Through the study of the Zumaia section in Spain, we have established the temporal relationships between Deccan volcanism and major carbon isotope excursions and planktic foraminiferal events during the KPB. We have also found evidence of abrupt environmental change related to Deccan volcanism.
Article
Geology
Barbara Claussmann, Julien Bailleul, Frank Chanier, Geoffroy Mahieux, Vincent Caron, Adam D. McArthur, Corentin Chaptal, Hugh E. G. Morgans, Bruno C. Vendeville
Summary: The study provides insights into the nature and development mechanisms of shelf-derived mass-transport deposits along tectonically active margins, highlighting the impact of tectonic activity on the evolution of subduction complexes and their trench-slope basins.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS
(2022)
Article
Geology
D. Moyano-Paz, S. Rozadilla, F. Agnolin, E. Vera, M. D. Coronel, A. N. Varela, A. R. Gomez-Dacal, A. M. Aranciaga-Rolando, J. D'Angelo, V. Perez-Loinaze, S. Richiano, N. Chimento, M. J. Motta, J. Sterli, M. Manabe, T. Tsuihiji, M. P. Isasi, D. G. Poire, F. E. Novas
Summary: The Chorrillo Formation deposits in southern Patagonia, Argentina, accumulated during a 'continental window' in the Late Cretaceous, with new vertebrate and plant fossils described. Analysis identified five architectural elements, separated into channelized and non-channelized units, representing a fine-grained dominated fluvial depositional system. The fossils include new taxa such as frogs, snakes, turtles, dinosaurs, and birds, shedding new light on the faunistic composition and paleobiogeography of Gondwana's high-latitude biotas.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Pavel Pitra, Marc Poujol, Jean Van Den Driessche, Eloise Bretagne, Caroline Lotout, Nathan Cogne
Summary: Eclogites in the Montagne Noire dome in the French Massif Central are believed to have formed in a subduction setting, with a prograde P-T path recorded. However, the discrepancy between REE patterns and U-Pb ages in zircon crystals suggests potential geological complexities in the region.
JOURNAL OF METAMORPHIC GEOLOGY
(2022)
Article
Geology
Ramon Mercedes-Martin, Ashit Rao, Mike Rogerson, Monica Sanchez-Roman
Summary: This study demonstrates that changes in salinity and biopolymer concentrations impact calcite growth dynamics, and the petrographical features of lacustrine non-skeletal carbonates are influenced by both physico-chemical and biological mechanisms.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Guoxiong Chen, Ning Huang, Guopeng Wu, Lei Luo, Detao Wang, Qiuming Cheng
Summary: This paper proposes a novel ensemble scheme using wavelet neural network (WNN) and Monte Carlo simulation (MCs) for data-driven mineral prospectivity mapping (MPM). The results show that the proposed algorithm improves the geological generalization of machine learning and provides important clues for mineral exploration.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Bo Jiu, Wenhui Huang, Nana Mu
Summary: This study investigated the characteristics and origins of lithium in enriched coal and coal seams in the southern margin of the Ordos Basin using various analytical techniques. The results showed that lithium mainly accumulates in clay minerals in the coal seams, and the contribution of volcanic ash to coal was supported by the presence of high-temperature minerals. The enrichment of lithium in the coal-measure strata is controlled by multiple factors.
ORE GEOLOGY REVIEWS
(2022)
Article
Geochemistry & Geophysics
Zhengzheng Cao, Yue Wang, Haixiao Lin, Qiang Sun, Xiaogang Wu, Xiaoshuai Yang
Summary: This study uses the representative element theory and statistical damage constitutive model, combined with finite element numerical algorithm and numerical software, to investigate the damage evolution of rock mass under stress-seepage coupling effect. By simulating the hydraulic fracturing process, the stress distribution and mechanical behavior of rock mass under different stress conditions are analyzed. The results are in good agreement with theoretical results, indicating that the established damage mechanical model and numerical model have certain accuracy.
Article
Geology
Jiangbo Ren, Gaowen He, Xiguang Deng, Xianze Deng, Yong Yang, Huiqiang Yao, Shengxiong Yang
Summary: This study investigates the metallogenesis of ferromanganese nodules in the northwestern Pacific and finds that they are formed in a low-temperature marine environment with oxidized metallogenic characteristics. The nodules have a typical hydrogenetic chemical composition and are enriched with multiple elements, mainly driven by coulombic interactions. The epsilon(Nd) and epsilon(Hf) values indicate that the nodules are more affected by bottom currents compared to ferromanganese crusts. The nodules and crusts in the northwestern Pacific have rich radioactive Nd isotopic compositions, which are consistent with the high epsilon(Nd) observed along the Pacific margins.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Biyun Zhang, Deshun Zheng
Summary: During the Neoproterozoic, global climate changed dramatically, leading to the discovery of glacial deposits worldwide. This study focused on investigating the Neoproterozoic Luoquan Formation in the southern margin of the North China Craton, revealing evidence of glacial meltwater deposits eroding nearby strata in a gradually warming environment. Sedimentary characteristics, glacial relics, changes in geochemical values, and the provenance age of detrital zircons all support the conclusion that the NCC deposition process occurred in the late Neoproterozoic with glacier migration from north to south.
INTERNATIONAL GEOLOGY REVIEW
(2022)
