Article
Geosciences, Multidisciplinary
Mingming Zhang, John P. Smol, Zhaojun Bu
Summary: The late Holocene tephrostratigraphic sequence of the Changbaishan volcanic field in Northeast China is well preserved in the Dongfanghong peatland, with four tephra layers identified. These tephra layers serve as important chronological markers in sedimentary contexts across Northeast Asia and provide essential historic eruptive information of the Changbaishan volcanic field. The study also highlights the significant potential of peatlands developed on volcanic fields in tephrostratigraphic sequence reconstructions.
Article
Geology
Zhitao Xu, Liying Sun, Xiqing Ye, Fei Ma, Chang Yu, Zhaoxin Chen, Xuemei Li, Xiaodong Pan
Summary: The study aims to investigate the emplacement age, magma evolution processes, and mantle source of monogenetic vents near the Changbaishan Tianchi volcano in NE China through geochemical and isotopic analysis. The results reveal that these volcanoes have a mantle source similar to OIB-type and are influenced by fluids released from the underlying Pacific flat slab.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geosciences, Multidisciplinary
Guoming Liu, Chenyu Li, Zhigang Peng, Yinan Liu, Yu Zhang, Dongyang Liu, Maoliang Zhang, Bo Pan
Summary: Changbaishan volcano, one of the most active intraplate volcanoes in East Asia, experienced unrest from 2002 to 2005, triggering seismic swarms, long-period events, and harmonic-spectra events, indicating magma movement. Research suggests that the Wangqing deep-focus earthquake may have caused the volcano's unrest and potentially triggered bubble excitation in the mid-crust magma system.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geology
Bryce S. Brown, Frank C. Ramos, John A. Wolff, Olaya Dorado, Joan Marti
Summary: Accurately dating phenocrysts in volcanic rocks is important but challenging. This study used (Ra-226)/(Th-230) isotopes to date alkali feldspar crystals in Holocene volcanic rocks from Tenerife. The partition coefficients of Ra and D-Ra/D-Ba were predicted using a lattice strain model, yielding crystallization ages that overlap or predate known eruption ages. The study also found that feldspar crystallization may occur up to the time of eruption, with some >8 ka crystals identified as antecrysts/xenocrysts.
Article
Geochemistry & Geophysics
Gianfranco Di Vincenzo, Gaston Godard, Giancarlo Molli
Summary: This study investigated the timing and evolution of tectono-metamorphic events in the Alpi Apuane by examining white mica samples. The research highlighted the importance of detailed microscale characterization and careful preselection of samples for accurate results.
Article
Geosciences, Multidisciplinary
Agung Harijoko, Sistien Adhaena Sari, Haryo Edi Wibowo, Nugroho Imam Setiawan, Mradipta Lintang Alifcanta Moktikanana
Summary: The active cone of Mt. Slamet is located above the Guci Valley, posing a threat of volcanic eruptions and hazards to the population. The study combined stratigraphic observations and petrologic analysis to better understand potential volcanic hazards in the area.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Geology
Lei Liu, Guofeng Xu, Youyue Lu, Jianming Fu, Lin Sun, Xiaoyong Chen, Yunfei Zhang, Shunbo Cheng, Chuangye Zhang, Qiaoyun Chen, Ming Huang, Zunzun Zhang, Tianyang Hu, Kun Zhang
Summary: The determination of the deposit age in the Aotou tin deposit, China, was successfully achieved by combining muscovite 40Ar-39Ar dating and cassiterite LA-ICP-MS U-Pb dating. The results showed that the tin deposit was formed during the late Indosinian period. Additionally, the study discussed the prospecting index of the Indosinian granite by compiling data of relevant plutons, revealing that the metallogenic plutons during this period were mainly acidic rocks characterized by specific mineral assemblages and geochemical compositions.
ORE GEOLOGY REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Natalia Pardo, Roberto Sulpizio, Federico Lucchi, Guido Giordano, Shane Cronin, Bernardo A. Pulgarin, Matteo Roverato, Ana Maria Correa-Tamayo, Ricardo Camacho, Miguel A. Cabrera
Summary: This study presents the eruption history of the little-known Dona Juana volcanic complex in SW Colombia, shedding light on potentially active volcanism in the rural Northern Andes region. Through a combination of mapping, radiocarbon dating, sedimentology analysis, and historical records, the volcanic stratigraphy of the central-summit vent area was reconstructed. The results reveal cyclic transitions from lava-dome growth to collapse and explosive phases. Pyroclastic density currents, generated by dome collapse or fountain/column collapse, were channeled into the fluvial valleys around the volcano summit. The volume of these currents ranged from about 4 to 10 x 106 m3 and exhibited different depositional regimes.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2023)
Review
Geochemistry & Geophysics
Gabrielle Tepp, Robert P. Dziak
Summary: Many submarine eruptions have been recorded through seismo-acoustic signals since 1939, providing valuable information about the activity of hidden underwater volcanoes. Real-time monitoring and study of submarine eruptions have increased our understanding of deep-sea volcanoes, but there are still many questions that need to be addressed in order to fully understand and monitor submarine volcanoes.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
Hyun-Ok Choi, Jonguk Kim, Jihye Oh, Chang Hwan Kim, Soon Young Choi, Won Hyuck Kim, Chan Hong Park
Summary: This study utilized mineralogy and geochemistry data from submarine volcanic rocks collected from various seamounts in the southwest of the East Sea to investigate the characteristics of magmas' sources, evolution, and storage conditions. The analyses revealed information about the ages of the samples, the compositions of rocks, and the thermobarometric conditions associated with Quaternary volcanism, shedding light on the formation and evolution of these seamounts.
Article
Geography, Physical
Xavier Quidelleur, Laurent Michon, Vincent Famin, Marie-Charlotte Geffray, Martin Danisik, Nicholas Gardiner, Anais Rusquet, Mohamed Gou Zakaria
Summary: The Comoros archipelago has attracted attention due to the submarine volcano east of Mayotte and the associated seismic crisis. Anjouan Island, located in the central part of the archipelago, is crucial for understanding the relationship between volcanism and geodynamics. New data indicates younger volcanic activity on Anjouan than previously thought, occurring in pulses at various intervals.
QUATERNARY GEOCHRONOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Anais Rusquet, Vincent Famin, Xavier Quidelleur, Laurent Michon, Francois Nauret, Martin Danisik, Isabelle Thinon, Sylvie Leroy, Anne Lemoine
Summary: The volcanism of the Comoros archipelago, particularly the Mohe & PRIME;li island, has been studied to understand its volcano-tectonic and geochemical evolution. The results reveal two construction stages of Mohe & PRIME;li, separated by increased subsidence. The geochemical evolution of the emitted magmas also aligns with the volcano-tectonic stages. The discovery of Holocene volcanism on Mohe & PRIME;li highlights the need to consider the entire Comoros archipelago as an active volcanic zone.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2023)
Article
Geochemistry & Geophysics
Wei LianHuan, Zhang JiaQi, Sun Ying, Liu GuoMing, Ao Meng, Liu ShanJun
Summary: This paper proposes a volcanic activity analysis method suitable for Changbaishan Tianchi volcano using a modified time series InSAR approach and volcanic point source model. The results show that the magma chamber of Changbaishan Tianchi volcano experienced expansion and contraction from 2004 to 2010.
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
(2023)
Article
Geochemistry & Geophysics
Dong Yan, You Tian, Dapeng Zhao, Hongli Li
Summary: A high-precision earthquake catalog was created using continuous waveform data recorded at 360 portable seismographs deployed in the Changbaishan-Tianchi volcanic area. The study revealed the 3-D structures of the crust beneath the study region and identified a high-Vp/Vs zone accompanied by volcanic earthquakes, indicating the presence of a magma chamber. The findings suggest a multilevel structure of magma chambers in the upper and middle crust, which is closely associated with the diverse eruption styles of the Changbaishan volcano.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geography, Physical
Gill Plunkett, Michael Sigl, Joseph R. McConnell, Jonathan R. Pilcher, Nathan J. Chellman
Summary: Polar ice cores provide important records of past volcanic eruptions and their impacts on climate and society. The co-deposition of volcanic ash in the ice helps determine eruption source parameters and provides insights into eruption characteristics. The review highlights the extensive source region of tephra reaching Greenland and identifies the relationship between eruption characteristics and climate responses.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geochemistry & Geophysics
Lin Gong, Barry P. Kohn, Zhiyong Zhang, Bing Xiao, Lin Wu, Huayong Chen
Summary: Porphyry copper deposits in the Paleozoic era are less common, but some large ones are preserved worldwide, especially in the Central Asian orogenic belt. The study of the Yandong porphyry copper deposit in the Carboniferous era reveals at least two cooling episodes and the key factors contributing to its preservation, such as tectonic quiescence and postmineralization burial. Anomalously old apatite fission track ages integrated with age-elevation relationships can provide insights for mineral exploration strategies in the Chinese Tianshan orogens.
Article
Geochemistry & Geophysics
Lin Wu, Fei Wang, Zhiyong Zhang, Guanghai Shi, Martin Danisik, Defeng He, Jingbo Sun, Ying Wang, Xiaoming Shen, Than Zaw
Summary: （Summary in English:）
The newly developed MK-1 apatite has shown highly reproducible dates and Th/U ratios in six different laboratories, with an average date of 18.01 +/- 0.37 Ma and Th/U ratio of 0.72 +/- 0.06. Combined with previous studies, MK-1 apatite is considered a promising new reference material for (U-Th)/He geochronology.
Article
Geochemistry & Geophysics
Dunfeng Xiang, Zhiyong Zhang, Thomas Zack, David Chew, Yueheng Yang, Lin Wu, Johan Hogmalm
Summary: Apatite is a common accessory mineral in different types of rocks, but accurate U-Pb LA-ICP-MS dating is often affected by high levels of common Pb. A new Pb-204 correction method was used in this study to improve accuracy and precision by overcoming isobaric interference issues. Experimental results demonstrate that different reaction gases do not significantly affect the accuracy and precision of U-Pb dating.
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2021)
Article
Geochemistry & Geophysics
Lixing Lu, Jimin Sun, Yingying Jia, Lin Wu
Summary: This study determined the deformation ages of four thrusts within the Keping FTB using apatite (U-Th)/He thermochronometer, revealing the characteristics and process of Cenozoic tectonic deformation along the southern Tian Shan foreland. The results suggest that the deformation across the southern Tian Shan foreland initiated at around 16-12 Ma, and the propagation process of the Keping thrust system is laterally non-synchronous. Additionally, the crustal shortening rates of the Keping FTB were recalculated based on new age constraints.
Article
Geochemistry & Geophysics
Nan Wang, Zhiyong Zhang, Marco G. Malusa, Lin Wu, David Chew, Jien Zhang, Dunfeng Xiang, Wenjiao Xiao
Summary: Northeast Asia, particularly the Zhangguangcai Range, provides a detailed insight into subduction-related tectonic activities, including the emplacement of granites and eruption of volcanic rocks during the Early Mesozoic, as well as episodic exhumation events since the Jurassic. The interactions and juxtaposition of multiple tectonic domains have led to complex geological processes in this region.
Article
Geosciences, Multidisciplinary
Yang Chu, Mark B. Allen, Bo Wan, Ling Chen, Wei Lin, Morteza Talebian, Lin Wu, Guangyao Xin, Zhentian Feng
Summary: The paper presents new geochronology and thermochronology data for the Talesh Mountains in northwest Iran to study the exhumation patterns during the Arabia-Eurasia collision. Results show a shared exhumation history between Talesh and Alborz, with regionally enhanced exhumation in the Late Miocene. The Late Miocene onset of deformation may relate to a re-organization of Arabia-Eurasia plate convergence.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Weibin Zhang, Fei Wang, Lin Wu, Liekun Yang, Xibin Tan, Wenbei Shi, Xiwei Xu
Summary: The study of Taibai Mountain on the southern margin of the western North China Craton reveals a rapid exhumation phase around 78-71 Ma, indicating the possible Late-Cretaceous margin reactivation. This reactivation may have been driven by WNW-ESE extension in East Asia related to thermo-tectonic events, basin subsidence, and volcanism.
Article
Geosciences, Multidisciplinary
Yinzhi Wang, Fei Wang, Lin Wu, Zhiyong Zhang, Wenbei Shi, Liekun Yang
Summary: This study investigates the post-mineralization thermal evolution in the Jiaodong and Liaodong areas of eastern China. The results show that the evolution processes in the two areas are very similar during the Cretaceous, but show marked differences during the Cenozoic. The erosion amounts in Jiaodong and Liaodong are estimated at -4.8 km and -4.7 km, respectively.
Article
Geosciences, Multidisciplinary
Chao Guo, Zhiyong Zhang, Marco G. Malusa, David Chew, Dunfeng Xiang, Lin Wu, Nan Wang, Wenjiao Xiao
Summary: The Cenozoic deformation of the Tianshan Mountain Range and its impact on the Tarim Basin's exhumation and topographic growth are investigated in this study through the analysis of detrital apatite fission-track ages. The results show major age-shifts at -23 Ma and -10 Ma, suggesting drainage reorganizations associated with the uplift of the South Tianshan Mountain Range. The progressive topographic growth of the range is found to have influenced the aridification of the Tarim region.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Weibin Zhang, Fei Wang, Lin Wu, Jingnan Shan, Liekun Yang, Wenbei Shi, Xiwei Xu
Summary: Tectonics and climate are two competitive factors in shaping landforms. This study investigates the accelerated exhumation process in Taibai Mountain and identifies two stages of accelerated exhumation occurring at approximately 52-46 Ma and 24-19 Ma. These events are influenced by tectonic forces and climate change.
Article
Geochemistry & Geophysics
Yin Wang, Wei Lin, Michel Faure, Vuong Van Nguyen, Lingtong Meng, Yang Chu, Wei Wei, Hoai Luong Thi Thu, Claude Lepvrier, Tich Van Vu, Qiuli Li, Hao Wang, Zechao Chen, Lin Wu, Fei Wang
Summary: The timing and mechanism of the combination between the South China Block and the Indochina Block were investigated, and a hypothesis that the Ailaoshan, Song Ma, and Song Chay belts represent different segments of the same tectonic belt was proposed. Detailed structural data and geochronological results revealed the geological evolution model in this region.
Article
Chemistry, Analytical
Lin Wu, Jie An, Fei Wang, Liekun Yang, Xiaoming Shen, Zhiyong Zhang, Chao Huang, Rong Ren, Bo Liu, Wenbei Shi, Yinzhi Wang
Summary: The in situ laser (U-Th)/He and U-Pb double dating technique using zircon has been proven to be a powerful tool for sedimentary provenance studies. The recently developed laser microanalysis technique offers advantages such as higher spatial resolution and improved safety. A new natural zircon reference material, SA01, has been reported for in situ (U-Th)/He and U-Pb double dating, which showed consistent results with traditional single-crystal laser fusion He determination and U-Th isotope dilution.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Geochemistry & Geophysics
Yinzhi Wang, Fei Wang, Wenbei Shi, Liekun Yang, Lin Wu
Summary: The 40Ar/39Ar dating method requires a neutron flux monitoring reference material. The availability of the commonly used Alder Creek sanidine as a reliable indicator for Quaternary materials is limited in many laboratories. A new sampling method of Alder Creek rhyolite has been developed to produce pure and fresh sanidine crystals, which can be used as a new batch of the reference material. The newly selected grains of sanidine were meticulously dated and calibrated against international reference materials to evaluate their homogeneity and reproducibility.
APPLIED GEOCHEMISTRY
(2023)
Article
Geochemistry & Geophysics
Lixia Feng, Baofu Han, Lin Wu, Zhongpeng Han, Jiawei Zhang, Mei Liu
Summary: The initial timing of extension during the Cenozoic around the northeastern margin of the Ordos Block has been investigated using low-temperature thermochronology. The results show extensive cooling during the Late Cretaceous and differential cooling during the Late Paleocene-Eocene, indicating denudation in the region and tilting of the eastern Daqingshan Mountains. The study also suggests a regional extension event and the possible contribution of subduction of the Izanagi-Pacific plate and India-Asia collision.
Article
Geochemistry & Geophysics
Yinzhi Wang, Fei Wang, Lin Wu, Wenbei Shi, Liekun Yang
Summary: (U-Th)/He thermochronology is an important tool for understanding the temporal evolution of thermally sensitive geological events. This study examines factors affecting high- and low-U mineral He ages using zircon and apatite (U-Th)/He ages in the Jiao-Liao region, eastern China. Improving sample quality and considering factors such as inclusions and U content can help address the issue of significant intra-sample variation.
GEOCHEMICAL JOURNAL
(2022)
Article
Geography, Physical
Monika Devi, Naveen Chauhan, Ashok K. Singhvi
Summary: Devi et al. (2022) suggested that post-violet infrared stimulated luminescence (pVIRSL) of K-feldspars has a near zero athermal fading rate. This study investigates the mechanism and suitability of the pVIRSL signal for dating applications. The results show that pVIRSL is a recuperated signal resulting from the eviction and recapture of charges in deep traps by violet stimulation and subsequent infrared stimulation. The pVIR-SAR protocol worked well for dating seven K-feldspar samples from various depositional environments.
QUATERNARY GEOCHRONOLOGY
(2024)
Article
Geography, Physical
Chloe Baldreki, Andrew Burnham, Martina Conti, Lucy Wheeler, Michael J. Simms, Lawrence Barham, Tom S. White, Kirsty Penkman
Summary: Aragonitic calcium carbonate mollusc shells with complex shell microstructures can be used for amino acid geochronologies in Africa. Different microstructural shell layers may have different protein compositions, requiring sampling strategies. The 3AL shell portion showed closer adherence to closed-system behavior and demonstrated the potential of fossil achatinids for building relative amino acid geochronologies across Africa.
QUATERNARY GEOCHRONOLOGY
(2024)
Article
Geography, Physical
Patrick Chiroiu, Alexandru L. Onaca, Adrien Favillier, Mircea Voiculescu, Christophe Corona, Petru Urdea, Markus Stoffel
Summary: Snow avalanches present a constant threat to mountainous regions worldwide, and understanding past avalanche events is crucial for managing and mitigating avalanche hazards and risks. In this study, dendrogeomorphic techniques were used to analyze 17 avalanche paths in a small region of the Fagaras Mountains. The analysis reconstructed 174 snow avalanche years across all paths and revealed widespread avalanche occurrence in the study area. The study emphasizes the importance of investigating multiple avalanche paths in a small, homogeneous area to gain a better understanding of snow avalanche activity at both path-scale and mountain range-scale.
QUATERNARY GEOCHRONOLOGY
(2024)
