Review
Geosciences, Multidisciplinary
Boheng Shen, Shuzhong Shen, Qiong Wu, Shuichang Zhang, Bin Zhang, Xiangdong Wang, Zhangshuai Hou, Dongxun Yuan, Yichun Zhang, Feng Liu, Jun Liu, Hua Zhang, Yukun Shi, Jun Wang, Zhuo Feng
Summary: This study critically reviews the chronostratigraphy and biostratigraphy of the latest Carboniferous and Permian in the North China Block and provides insights into the stratigraphic correlation and geological events. The study also estimates the amplitude of sea-level changes and highlights the favorable period for coal accumulation during the late Carboniferous and early Permian. The climatic shift during the Permian is attributed to the northward migration of the Pangea and the closure of the Paleo Asian Ocean.
SCIENCE CHINA-EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Gabriel A. Barberes, Rui Pena dos Reis, Nuno L. Pimentel, Andre L. D. Spigolon, Paulo E. Fonseca, Przemyslaw Karcz, Marco C. Azevedo, Maria Teresa Barata
Summary: The Baixo Alentejo Flysch Group (BAFG) is a significant stratigraphic unit in the South Portuguese Zone (SPZ) that consists of black shales with high thermal maturation, predominantly in gas zones, currently functioning primarily as a gas reservoir.
Article
Geosciences, Multidisciplinary
Yukun Shi, Xiangdong Wang, Junxuan Fan, Hao Huang, Huiqing Xu, Yingying Zhao, Shuzhong Shen
Summary: Recent study revealed a rapid increase of marine fauna species and genus richness during the Late Paleozoic Ice Age, lasting 41.2 million years and named as Carboniferous-earliest Permian Biodiversification Event (CPBE). The event included a slow increase episode and a main radiation episode, with most distinct patterns in fusulinid foraminifera and decreasing trends in nektonic conodonts and cephalopods, possibly related to marine environmental shifts caused by the Rheic Ocean closure.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geography, Physical
Yuan Wang, Jianghai Yang, Charles M. Henderson, Dongxun Yuan, Rui Ma, Jia Liu
Summary: This study establishes five conodont zones for the Taiyuan Formation in southern North China and determines a late Gzhelian to late Asselian age, which is consistent with high-precision zircon U-Pb ages. The study also combines conodont biostratigraphy with previously published U-Pb ages to construct a new chronostratigraphic framework for the Carboniferous-Permian strata across North China. It reveals an earlier initiation of climate aridification in the northern part compared to the southern part, possibly due to northward drift, increased atmospheric pCO2, and global warming.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Thermodynamics
Kai Wang, Tao Han, Jun Deng, Yanni Zhang
Summary: The study investigates the coal combustion characteristics and kinetic parameters of Chinese coals from different geological periods. The results show that the heating rate has an impact on the characteristic temperatures of coal samples. The Carboniferous-Permian coals have lower ignition temperatures, higher heat release, and lower activation energy compared to Jurassic coals, indicating superior combustion performance.
Article
Geosciences, Multidisciplinary
Antonio Jabaloy-Sanchez, Cristina Talavera, Martin Jesus Rodriguez-Peces, Mercedes Vazquez-Vilchez, Noreen Joyce Evans
Summary: New U-Pb detrital zircon and U-Pb zircon ages of metaigneous rocks in the aguilas Arc (Betic Chain, SE Spain) provide insights into the maximum depositional ages of the rocks, revealing different depositional ages for rocks within different complexes. The age patterns of the Carboniferous rocks suggest deposition in foreland basins located eastwards of the Iberian Massif, while samples with Early Permian maximum depositional ages show mixing of detrital zircon grains from different complexes. Additionally, no major felsic rock formation or exhumation event after the Early Permian is recorded in these complexes.
Article
Geosciences, Multidisciplinary
Donghai Zhang, Baochun Huang, Guochun Zhao, Joseph G. Meert, Simon Williams, Jie Zhao, Tinghong Zhou
Summary: Research indicates that the northward motion of North China and Mongolia paralleled Laurussia from the Late Carboniferous to Early Permian, with the Paleo-Asian Ocean in the east-central segment having a width of about 2,700 km. This wide ocean impeded floral and faunal exchange until the Guadalupian, prior to its final closure by approximately 250 Ma.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
Diana Moreno-Martin, Ruben Diez Fernandez, Gerardo de Vicente, Carlos Fernandez, Juan Gomez Barreiro
Summary: This study reveals the reworking and reactivation processes of two orogenic systems, Variscan and Alpine, and a stage of Permian extension in the eastern sector of the Spanish-Portuguese Central System through integrated structural analysis. The Variscan deformation exploited weak rheological boundaries and the strike-slip shear zone acted as a transfer fault to accommodate Permian extension and Alpine contraction.
Article
Geochemistry & Geophysics
Manuel Francisco Pereira, Jose Manuel Fuenlabrada, Carmen Rodriguez, Antonio Castro
Summary: Carboniferous magmatism in southwestern Iberia played a crucial role in understanding the formation of the Pangea supercontinent and recorded the complex oblique convergence between Laurussia and Gondwana. A new tectonic model suggests that the Iberia Variscan belt was the site of simultaneous collisional and accretionary orogenic processes.
Article
Geochemistry & Geophysics
Jaime A. Poblete, Paul H. G. M. Dirks, Zhaoshan Chang, Jan Marten Huizenga, Martin Griessmann, Chris Hall
Summary: The Watershed tungsten deposit in the Mossman orogen is largely found in skarn-altered conglomerate, influenced by four deformation events that led to the formation of multistage quartz veins. Key controls on scheelite mineralization include early monzonite dikes enriched in scheelite, D-4 shear zones acting as fluid conduits, skarn-altered conglomerate providing a host for vein formation, and an extensional depositional environment.
Article
Geosciences, Multidisciplinary
Renda Huang, Fujie Jiang, Di Chen, Ruoyuan Qiu, Tao Hu, Linhao Fang, Meiling Hu, Guanyun Wu, Chenxi Zhang, Jiahao Lv, Yuping Wu, Liliang Huang
Summary: By studying the Fengcheng Formation in northwest China, we have confirmed that it records the Carboniferous-Permian boundary. Through global carbon isotope data, we found the similarity of negative carbon isotope excursions in terrestrial and marine profiles, supporting their global synchrony and potential use for delimiting the Carboniferous-Permian boundary in terrestrial sections. This study contributes to understanding the Carboniferous-Permian global carbon cycle, high-latitude glaciation, eustatic fluctuations, global volcanism, and their potential relationships.
Article
Geosciences, Multidisciplinary
Marcos Aurell, Diego Torrome, Jose M. Gasca, Pablo Calvin, Manuel Perez-Pueyo, Jara Parrilla-Bel, Eduardo Medrano-Aguado, Carles Martin-Closas, Alba Vicente, Pablo Sierra-Campos, Jose I. Canudo
Summary: This study characterizes the uppermost Cretaceous sedimentary succession of the Allueva Fm in the Montalban subbasin and provides new data for its age. The results suggest a south to north migration of tectonic activity and subsident subbasins. Additionally, significant vertebrate fossil sites have been discovered.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Leifu Zhang, Dazhong Dong, Zhen Qiu, Chenjun Wu, Qin Zhang, Yuman Wang, Dexun Liu, Ze Deng, Shangwen Zhou, Songqi Pan
Summary: The study of the marine-continental transitional strata in the Upper Carboniferous to Lower Permian through high-resolution geochemical data integration reveals the characteristics of frequent sedimentary environment changes and the accumulation of organic-rich sediment under varied conditions.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geochemistry & Geophysics
Graca Silveira, Nuno Afonso Dias, Sergey Kiselev, Eleonore Stutzmann, Susana Custodio, Martin Schimmel
Summary: This study presents a new high-resolution three-dimensional shear wave velocity model of the crust and uppermost mantle in Portugal. The model contributes to a better understanding of the seismicity and geological structures in Portugal.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
Ana Simon-Muzas, Antonio M. Casas-Sainz, Ruth Soto, Emilio L. Pueyo, Elisabet Beamud, Belen Oliva-Urcia
Summary: This study presents a detailed paleomagnetic analysis of volcanic rocks and red beds from the Late-Carboniferous-Permian series in the Cadi Basin. The results provide reliable paleomagnetic directions and indicate the presence of magnetite and hematite in these rocks. The study also suggests that the main magnetization is of Permian age in the red beds and may represent primary magnetization or early remagnetization in the Late Carboniferous volcanic rocks.
Article
Plant Sciences
Gar W. Rothwell, Ruth A. Stockey
Summary: This study utilizes anatomical analysis of fossils from Vancouver Island, Canada, to support the development of a whole plant concept for the Eocene species of Gleichenia and provide data for the first organismal concept of an extinct species of Gleichenia from the Cenozoic fossil record. The findings suggest that the characteristics of the Gleicheniaceae family were present during the Cretaceous and Paleogene periods, with modern species well-established and diversifying.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Kathrin Ganz, Cesar Morales-Molino, Erika Gobet, Dmytro Kiosak, Nadezhda Kotova, Jacqueline van Leeuwen, Sergey Makhortykh, Christoph Schworer, Willy Tinner
Summary: This study presents a palaeoecological reinvestigation from the Kardashynskyi mire in southern Ukraine, reconstructing the vegetation dynamics, fire history, and land use for the past 8300 years. The results show that both climate and human activities have driven the vegetation changes, and the remaining special vegetation types are severely threatened under current conditions.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Willem O. van der Knaap, Bas van Geel, Jacqueline F. N. van Leeuwen, Frans Roescher, Dick Mol
Summary: Pollen analysis of fossilized teeth from a giant deer found in The Netherlands provides insights into the diet, landscape, and climate of the specimen. The study suggests that the giant deer most likely lived during the early Eemian or an early Weichselian interstadial.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Yun Guo, Yu Zhou, Josef Psenicka, Jiri Bek, Jana Votockova Frojdova, Zhuo Feng
Summary: A new species of adpressed leptosporangiate fern, Szea yunnanensis sp. nov., is described from Yunnan Province, Southwest China. The fronds of this new species have unique characteristics such as fertile pinnules with triangular to falcate shape and abaxial sori arranged in one row on each side of the midvein.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Adele C. M. Julier, Glynis J. Humphrey, Caitlin Dixon, Lindsey Gillson
Summary: The relationships between woody vegetation cover and fire, climate, herbivory, and human activities in African savanna ecosystems are complex. Fire suppression policies implemented in a national park in northeast Namibia from 1888 to 2005 did not lead to noticeable decreases in fire or enhanced tree recruitment, suggesting that fire occurrence in savanna ecosystems is more closely linked to climate than management. Fire management should adapt to rainfall variability and integrate customs of early dry season burning.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Milan Libertin, Jiri Kvacek, Jiri Bek
Summary: This paper revises the genus Aberlemnia from the Early Devonian of Scotland based on its type-material A. caledonica and describes a new species, Aberlemnia krizii sp. nov, from the Silurian of Czechia. The study provides detailed diagnoses and highlights the differences between the two species. Aberlemnia is positioned on an evolutionary clade line leading to the Lycophytina.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
