Article
Geosciences, Multidisciplinary
Moonsup Cho, Wonseok Cheong, W. G. Ernst, Yoonsup Kim, Keewook Yi
Summary: The study sheds light on the Paleozoic paleogeography of East Gondwanan terranes, particularly the North China Craton, using new data from sandstones in the Taebaeksan Basin, Korea. It reveals the vestige of coeval arc magmatism and significant changes in provenance, possibly linked to variations in paleowater depths. Detrital zircons with distinct distribution patterns suggest a connection to the proto-Japan arc and indicate a sedimentary influx from contemporaneous volcanic activity.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2021)
Article
Energy & Fuels
Zhihui Zhang, Dawei Lv, James C. Hower, Luojing Wang, Yangyang Shen, Aocong Zhang, Jincheng Xu, Jie Gao
Summary: In this study, the altered volcanic ashes in coal-bearing sequences in the Ordos Basin, North China were comprehensively investigated. Fifteen partings were identified as altered volcanic ashes and the Taiyuan Formation in the studied area was determined to belong to the Gzhelian Stage of the Late Pennsylvanian. The elevated concentrations of certain elements in the coals may be related to leaching by (acidic) groundwater or hydrothermal solutions.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Geology
Libby R. W. Ives, John L. Isbell
Summary: This study reexamines the Late Paleozoic glaciation conditions in the Tasmanian Basin through facies analysis and sequence stratigraphy, providing a detailed understanding of the glaciogenic sedimentary systems. The findings enhance our knowledge of the global climate system during the Late Paleozoic Ice Age.
SEDIMENTARY GEOLOGY
(2023)
Article
Geology
Carrel Kifumbi, Claiton Marlon dos Santos Scherer, Rossano Dalla Lana Michel, Adriano Domingos dos Reis, Felipe Guadagnin, Ezequiel Galvao de Souza, Joao Pedro Formolo Ferronatto, Fabio Herbert Jones
Summary: By using a numerical reconstruction of controlling parameters, the complex structure of wet and dry aeolian systems in the Pennsylvanian Piaui Formation is studied, revealing that the preservation of sediment is directly influenced by sand supply, availability, and wind energy, triggering expansion or contraction phases of the dune-field. This study suggests a highly dynamic nature of the aeolian dune system.
SEDIMENTARY GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Younggi Choi, Yong Sik Gihm
Summary: This study investigates the Munamdong Formation in the Yuljeon Basin of the Korean Peninsula, revealing a close connection between post-collisional tectonic processes and sedimentation. The restricted sediment supply indicates rapid uplift and exhumation of the orogenic crust, along with tectonic subsidence possibly aided by post-collisional magmatism.
GEOLOGICAL JOURNAL
(2023)
Article
Geography, Physical
Aixa Tosal, Joaquim Pamies, Carles Martin-Closas
Summary: This study describes the Pennsylvanian flora from the intramontane Erillcastell Basin in the eastern Pyrenees, Catalonia, Spain, and provides insights into its paleoenvironmental context. The basin exhibits unique fluvial channel and floodplain-related facies, and the plant assemblages are characterized by abundant calamitalean remains and marattialean tree ferns. An interesting finding is the common occurrence of Sigillaria brardii, an arborescent lycopsid, in association with Calamites species, which is different from its typical distribution in other South European basins. The study contributes to our understanding of intermontane forest ecosystems during the Middle to Late Pennsylvanian transition.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Mansour H. Al-Hashim, Patricia L. Corcoran
Summary: The Espanola Formation is part of the lower Huronian Supergroup and is interpreted to have been deposited in a restricted, fault-bound, intracontinental rift basin. Field examination in Ontario, Canada, revealed widespread synsedimentary deformation structures, including forceful-injection structures, slump structures, and soft-sediment deformation structures. These structures are believed to have originated from liquefaction and fluidization mechanisms triggered by syndepositional rift-related seismic activity.
PRECAMBRIAN RESEARCH
(2021)
Article
Energy & Fuels
Jiri Bek, Stanislav Oplustil, Jana Drabkova
Summary: The dispersed miospore and pollen assemblages from the Krkonose-Piedmont Basin were described from different formations, showing a trend of increasing number of monolete miospores and pollen with stratigraphic age. The most typical genera and species in the assemblages were identified, along with comparisons with other Czech and European coalfields and basins.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Sunghwan Im, Jung-Woo Park, Jihyuk Kim, Seon-Gyu Choi, Mi Jung Lee
Summary: The Early Cretaceous in the Korean Peninsula witnessed a magmatic episode characterized by tectonic transition from compression to extension. The Eopyeong granitoids in the Taebaeksan Basin during this period consisted of two distinct series of magmas: shoshonitic and high-K calc-alkaline. Through detailed petrologic and geochemical analysis, it was evident that these magmas evolved mainly by fractional crystallization from two distinct parental magmas with different water contents, indicating a mantle origin. The two magma series may have been generated by different degrees of partial melting of the mantle sources with varying water contents, possibly due to changes in subduction angle and direction of the paleo-Pacific plate during the Early Cretaceous.
Article
Geology
Kyung Soo Kim, Martin G. Lockley, Anthony Romilio, Seul Mi Bae, Jong Deock Lim
Summary: The Cretaceous Jindong Formation in the Gyeongsang Basin of South Korea is known for its abundant tetrapod track assemblages, with the recent discovery of fish traces providing the first direct evidence of fish in the region. The paired fish traces, along with bird and dinosaur tracks, indicate overlapping ichnocoenoses of different organisms, suggesting complex interactions and overlapping habitats in the same area.
CRETACEOUS RESEARCH
(2022)
Article
Plant Sciences
Josef Psenicka, Weiming Zhou, C. Kevin Boyce, Jana Votockova Frojdova, Jiri Bek, Stanislav Oplustil, Jun Wang
Summary: A new leptosporangiate fern genus, Discosoropteris, is described and two species are identified from the Duckmantian-age Kamenny Ujezd locality of the Pilsen Basin, Central Bohemia. These fossil fronds with tripinnate structure and distinct reproductive organs provide important insights into the evolution and classification of Carboniferous plants.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Chul Lim, Chang Whan Oh, Duck K. Choi, Youn-Joong Jeong, Amitava Chatterjee
Summary: Researchers in Korea investigated the boundary between the Taebaeksan Basin and the Ogcheon metamorphic belt, finding it to be a zone more than 20 km wide. They proposed two alternative models to explain the origin and structural relationship between the two geological features.
Article
Geology
Junwen Peng
Summary: This study investigates the deep-water fine-grained sedimentary rocks in the Upper Pennsylvanian Cline Shale, Midland Basin, USA, through sedimentological, petrographic and bulk geochemical analysis of three cored wells. The findings reveal a repeated pattern of lithofacies stacking to form composite cycle sets, controlled by high-amplitude glacioeustatic sea-level fluctuation. The presence of sediment density flow deposits challenges the conventional model of deep-water sedimentation as dominantly background sedimentation.
Article
Geology
Bivin G. George, Jyotiranjan S. Ray
Summary: The Chhattisgarh Basin is an important Proterozoic basin in peninsular India, composed of largely undeformed and unmetamorphosed sedimentary rocks deposited in the Mesoproterozoic. Provenance analysis using trace element and Nd isotopic ratios revealed that the Bastar craton's 2.5 billion-year-old granitoids were the major sediment source in the basin's early evolution, with a shift to younger magmatic rocks contributing in later stages. Overall, the sediment provenance remained constant throughout the basin's evolutionary history, but the relative contributions of different sources changed over time, particularly at the stratigraphic boundary between the Singhora and Chandarpur groups. Geochemical data suggest that the basin may have formed as a result of either rift or sag, with marine incursion occurring during the Mesoproterozoic.
INTERNATIONAL GEOLOGY REVIEW
(2021)
Article
Geology
Sujin Ha, Kyung Soo Kim, Hyoun Soo Lim, Martin G. Lockley, Jae Sang Yoo, Jong Deock Lim
Summary: Small pterosaur tracks were discovered in the Cretaceous Jinju Formation in Jinju City, South Korea, known for its well-preserved tetrapod track assemblages. These tracks, named Pteraichnus gracilis ichnosp. nov., are similar in size to previously reported small pterosaur tracks, but exhibit distinct morphological characteristics.
CRETACEOUS RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Mao Luo, Luis A. Buatois, G. R. Shi, Zhong-Qiang Chen
Summary: The study shows that from the late Permian to the Middle Triassic period, global ichnodiversity and ichnodisparity levels remained stable until the Griesbachian, followed by a sharp decline. The dominance of shallow-tier trace fossils in the Griesbachian is interpreted as unusual compared to other periods.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2021)
Article
Geosciences, Multidisciplinary
Ya-zhuo Niu, G. R. Shi, Wen-hua Ji, Jun-lin Zhou, Jian-qiang Wang, Kai Wang, Jian-Ke Bai, Bo Yang
Summary: This study identified volcano-sedimentary microfacies and facies associations in the Carboniferous-Permian sections of the southern BOC, shedding light on the tectonic and paleogeographic evolution of the region. The findings propose a succession of paleogeographic reconstructions for the BOC during the Carboniferous-Permian period, revealing the composition of the Paleo-Asian Ocean and its evolution.
EARTH-SCIENCE REVIEWS
(2021)
Article
Paleontology
Hai-peng Xu, Kyi Pyar Aung, Yi-chun Zhang, G. R. Shi, Fu-long Cai, Than Zaw, Lin Ding, Kyaing Sein, Shu-zhong Shen
Summary: This study reveals the geological ages of the brachiopod fauna in the Taungnyo Group in the Zwekabin Range of eastern Myanmar, and suggests that the Cisuralian brachiopod faunas in the Sibumasu Block should be divided into two separate assemblages, a cold-water fauna in the Sakmarian period and a biogeographically mixed fauna in the late Kungurian period.
JOURNAL OF PALEONTOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Sangmin Lee, G. R. Shi, Hans A. Nakrem, Jusun Woo, Jun-Ichi Tazawa
Summary: The Capitanian mass extinction event did not happen in Spitsbergen, but rather marked gradual faunal transitions throughout the Middle to Late Permian, mainly due to continuous cooling. Brachiopods in the northwestern marginal shelf of Pangea did not suffer a severe mass extinction in the Capitanian, instead many migrated southward with the development of the Zechstein seaway.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2022)
Article
Geochemistry & Geophysics
G. R. Shi, Allen P. Nutman, Sangmin Lee, Brian G. Jones, Glen R. Bann
Summary: This study presents a suite of U-Pb zircon ages from the Permian succession in the southern Sydney Basin, providing new insights into the chronostratigraphy and glacial events of the Permian period.
Article
Multidisciplinary Sciences
Facheng Ye, G. R. Shi, Maria Aleksandra Bitner
Summary: Research on the global distribution of living brachiopods and the proposal of a global bioregionalization framework highlighted the driving factors of large-scale ocean gyres, climatic zonation, and geohistorical factors. At a regional scale, faunal composition, diversity, and biogeographical differentiation are mainly controlled by seawater temperature variation, regional ocean currents, and coastal upwelling systems.
Article
Paleontology
Yeongju Oh, Dong-Chan Lee, Sangmin Lee, Seung-Bae Lee, Paul S. Hong, Jongsun Hong
Summary: Nisusiidae is a brachiopod family that was widely distributed in low-latitude regions during the middle Cambrian. The study reveals its origin from a paraphyletic group and subsequent diversification into two sister clades. The distributional range changes of Nisusiidae are likely influenced by paleo-oceanic currents and island arcs.
PAPERS IN PALAEONTOLOGY
(2022)
Article
Multidisciplinary Sciences
Tae-Yoon S. Park, Jikhan Jung, Mirinae Lee, Sangmin Lee, Yong Yi Zhen, Hong Hua, Lucas V. Warren, Nigel C. Hughes
Summary: Studying the Ediacaran-Cambrian transition and the Cambrian Explosion is crucial for understanding the evolutionary history of animals. Cloudinids, with derived characters linking them to cnidarians in the Cambrian, provide insight into the response of a primitive animal group during this period of rapid diversification.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Paleontology
G. R. Shi, Ian Metcalfe, Sangmin Lee, Daoliang Chu, Huiting Wu, Tinglu Yang, Yuri D. Zakharov
Summary: This study describes marine macroinvertebrate fossils from two petroleum exploration cores, identifying two separate assemblages. The age of one assemblage is interpreted as Changhsingian, while the other is considered to be of the earliest Triassic (Griesbachian) age.
Article
Geochemistry & Geophysics
Hyosang Kwon, Jusun Woo, Jae-Ryong Oh, Young Ji Joo, Sangmin Lee, Hans A. Nakrem, Min Sub Sim
Summary: This study presents a high-resolution sulfur isotope record from the Carboniferous-Permian successions of the Svalbard archipelago, shedding light on the late Paleozoic biogeochemical sulfur cycle, especially during the Early Permian. The results reveal the close links between sulfur isotope variations and geological events such as continental collisions, glaciation events, and sea level changes.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Paleontology
Sangmin Lee, G. R. Shi, Bruce Runnegar, J. B. Waterhouse
Summary: A high-latitude, low-diversity brachiopod fauna from the Snapper Point Formation in southeastern Australia is described, including 12 species. This fauna, associated with an interglacial stratigraphic interval, shows taxonomic similarities to glacial intervals. This suggests the persistent nature of the Permian Eastern Australian province regardless of glacial/interglacial climates.
Article
Geosciences, Multidisciplinary
Yeongju Oh, Sangmin Lee, Tae-Yoon S. Park, Dong-Chan Lee
Summary: Three new brachiopod species belonging to the Strophomenoidea group were discovered in the Taebaeksan Basin in South Korea. Dirafinesquina chosenensis is distinguished from other species by its unique postero-lateral ridges. The newly discovered Jigunsania genus exhibits characteristics of both Rafinesquininae and Leptaeninae subfamilies, suggesting it may be taxonomically significant in separating the two subfamilies.
GEOSCIENCES JOURNAL
(2023)
Article
Paleontology
G. R. Shi, Sangmin Lee, Galina Kotylar, Yuri D. Zakharov
Summary: This study describes two brachiopod assemblages from the South Primorye area of Far East Russia, collected from the Barabash and Pilnikov sections. The Barabash assemblage shows a mix of Boreal Realm and Cathaysian Province elements, along with genera with antitropical distributions, indicating it might have been located in the Sino-Mongolian seaway in the northern temperate confluence of warm- and cold-water ocean currents.
Article
Geosciences, Multidisciplinary
Yazhuo Niu, G. R. Shi, Jianqiang Wang, Chiyang Liu, Junlin Zhou, Jincai Lu, Bo Song, Wei Xu
Summary: Research in the southern Beishan Orogenic Collage in northwest China shows that the Carboniferous-Permian strata were formed by the closure of a branch of the Paleo-Asian Ocean and the subsequent development of a continental rift basin. The stratigraphy indicates a transition from marine to continental environments, with source areas composed of Precambrian and early Paleozoic rocks.
MARINE AND PETROLEUM GEOLOGY
(2021)