Article
Geosciences, Multidisciplinary
Renata Nela Tomezzoli, Ernesto O. Cristallini, Hugo Tickyj, Guadalupe Arzadun, Juan Martin Calvagno, Giselle Choque, Belen Febbo, Eliana Saguas
Summary: Geological evidence suggests that deformation along the southwest Gondwana margin began in the Middle-to-Late Devonian due to the collision of Chilenia and Patagonia with Gondwana. This study proposes that these continental blocks conform to the same allochthonous drift terrain, termed CHIPA. The geological evolution of this margin is still debated, with Permian rocks showing NW-SE elongation and NE-SW shortening. The deformation started as a result of the CHIPA collision and continued through the Permian as post-collisional compressive deformation, due to the paleogeographic re-organization of Gondwana and Laurentia during the Triassic to form the Pangea supercontinent.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Mathew Domeier, Eric Font, Nasrrddine Youbi, Joshua Davies, Samantha Nemkin, Rob Van der Voo, Morgann Perrot, Mohamed Benabbou, Moulay Ahmed Boumehdi, Trond H. Torsvik
Summary: This study revisits the early geometry of Pangea using new geochronological and paleomagnetic data, confirming the Pangea A model and providing detailed geological comparisons and reconstructions.
Article
Geochemistry & Geophysics
Nicholas L. Swanson-Hysell, Margaret S. Avery, Yiming Zhang, Eben B. Hodgin, Robert J. Sherwood, Francisco E. Apen, Terrence J. Boerboom, C. Brenhin Keller, John M. Cottle
Summary: By studying the paleomagnetic pole of the new Superior province after the ca. 1.83 Ga Trans-Hudson orogeny, researchers confirmed the coherency of Laurentia following this orogeny. The findings also provide an explanation for the discrepancies in pole positions between these provinces.
Article
Geochemistry & Geophysics
Yajun Xu, Xiao Liang, Peter A. Cawood, Jian-Wei Zi, Hangchuan Zhang, Jia Liu, Yuansheng Du
Summary: By analyzing the U-Pb ages of detrital monazite from Cambrian sedimentary rocks, we suggest that South China was located outboard of northeastern India. The detrital monazite ages indicate input from earliest Cambrian metapelites and provide tighter constraints on the paleogeography of South China compared to detrital zircon data alone.
Review
Geology
Biao Gao, Jitao Chen, Wenkun Qie, Xiangdong Wang
Summary: The Baoshan, Tengchong, Lhasa, South Qiangtang, and Sibumasu terranes were part of Gondwana before separating and moving away from the northern margin in the Early Permian. The paleopositions of these terranes during the late Paleozoic are still debated, which hampers the understanding of the tectonic evolution of the PaleoTethys and glacier distribution patterns on eastern Gondwana during the late Paleozoic ice age. Through analysis of detrital zircon U-Pb dating and Hf isotope signatures, this study proposes a new paleogeographic model that suggests the South Qiangtang, Baoshan, and part of Sibumasu were located outside the northern margin of Indian Gondwana, while the Lhasa and Sumatra terranes were along the northern margin of Australia. Based on shifts in provenance of late Paleozoic glaciogenic sedimentary rocks, the study also hypothesizes the development of two main ice sheets during the late Paleozoic. This research contributes to the understanding of the late Paleozoic tectonic and paleoclimatic history of Gondwana.
SEDIMENTARY GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Mathew Domeier, Boris Robert, Joseph G. Meert, Evgeniy V. Kulakov, Phil J. A. McCausland, Ricardo I. F. Trindade, Trond H. Torsvik
Summary: The Ediacaran Period was a time of significant global transformation, with major changes in the biosphere, cryosphere, hydrosphere, atmosphere, and possibly the solid Earth. Understanding this period is important for studying the diversification of complex life, long-term climate change, and global geochemical cycles. However, there is a lack of a robust paleogeographic framework to study these changes in space, and the paleomagnetic data are unusually complex and contradictory.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geochemistry & Geophysics
Zhiyu Yi, Yushu Liu, Joseph G. Meert, Tianyue Wang, Baochun Huang
Summary: Paleomagnetic and geochronological data from late Triassic dykes and sills in North China suggest that the East Asian blocks were further north and merged with Pangea earlier than previously thought. This updated reconstruction of Pangea's paleogeography is compatible with a zonal climate model, eliminating the need for the Pangean mega-monsoon hypothesis.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geosciences, Multidisciplinary
S. A. Pisarevsky, Z. X. Li, M. G. Tetley, Y. Liu, J. P. Beardmore
Summary: The updated version of the Global Paleomagnetic Database (GPMDB) provides a wealth of high-quality paleomagnetic data with user-friendly interface and multi-stage search capabilities. This database is crucial for Earth science research and the development of machine learning applications.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Zhiyu Yi, Tianyue Wang, Joseph G. Meert, Qian Zhao, Yushu Liu
Summary: Studies on Paleocene lavas from the Linzhou Basin in South Tibet indicate that the magnetic characteristics are primary, providing insights into the initial geometry of the India-Asia collision and contributing to the long-term cooling of the Earth.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Pei-yuan Hu, Qing-guo Zhai, Peter A. Cawood, Roberto F. Weinberg, Guo-chun Zhao, Yue Tang, Yi-ming Liu
Summary: Paleogeographic reconstruction of Precambrian terranes reworked by Phanerozoic orogens, such as the Tibetan Plateau, reveals complex lithotectonic relations due to intracrustal reworking. Global and regional detrital zircon rare earth element (REE) databases show trends in LREE/HREE and Eu/Eu* that record the crustal evolution of the source and provide a new approach for paleogeographic reconstructions. By analyzing sedimentary and igneous rocks in the Lhasa terrane and detrital zircon samples from the northern margin of Gondwana, it is demonstrated that the Lhasa terrane had an African affinity in the Rodinia-Gondwana supercontinent cycles (ca. 1.4-0.4 Ga).
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
P. Y. J. Antonio, M. S. D'Agrella-Filho, A. Nedelec, M. Poujol, C. Sanchez, E. L. Dantas, R. Dall'Agnol, M. F. B. Teixeira, A. Proietti, C. Martinez Dopico, D. C. Oliveira, F. F. Silva, B. Marangoanha, R. I. F. Trindade
Summary: The Uatuma event in the Amazonia craton during the early Paleoproterozoic period is studied through new paleomagnetic and U-Pb apatite age data from dykes in the Carajas Province. The presence of two primary characteristic remanent magnetizations (ChRMs) and the identification of two grand mean poles from different dykes provide insights into the paleomagnetic history and plate movements during that period. The discrepancies between the poles suggest high plate velocities and potential true polar wander as explanations for the observed geological and paleomagnetic data.
PRECAMBRIAN RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Catherine Girard, Raimund Feist, Angelo Mossoni, Jean-Jacques Cornee, Pierre Camps, Anne-Lise Charruault, Carlo Corradini
Summary: Large-scale magnetic susceptibility variations in ancient sediments are interpreted as related to sea-level and climate changes affecting the erosional regime and detrital input. Comparison of MS records in Avalonia and Gondwana regions during the Famennian revealed striking dissimilarities, indicating the existence of an existing remnant oceanic barrier during early Famennian times. However, uniformity in MS values was observed after the drop in MS values in North Gondwana, suggesting the disappearance of oceanic barriers during the early middle Famennian T-R fluctuations of the sea-level.
Article
Geosciences, Multidisciplinary
Teal R. Riley, Alex Burton-Johnson, Michael J. Flowerdew, Fernando Poblete, Paula Castillo, Francisco Herve, Philip T. Leat, Ian L. Millar, Joaquin Bastias, Martin J. Whitehouse
Summary: The Antarctic Peninsula has preserved evidence of a long-lived continental margin with various geological units, suggesting a convergent margin setting from the Cambrian to the Cenozoic. Through the use of geochronology and field evidence, along with detailed kinematic reconstructions, the relationships between geological units and tectonic events in Patagonia and the proto-Antarctic Peninsula have been established. The Gondwana/Pangea continental margin experienced crustal block translation, deformation, magmatic pulses, and development of thick accretionary complexes, which were influenced by subducting slab dynamics.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Xiao-ming Li, Xiang-dong Wang, Le Yao, Yi-chun Zhang, Xiao-juan Wang
Summary: The genus Thomasiphyllum is a taxon with a regionally distributed occurrence restricted to the Cimmerian Continent during the Middle Permian. The presence of naotic septal structures is a key characteristic of this genus and can aid in the reconstruction of the paleogeography of the Gondwana margin.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geology
Timothy Paulsen, John Encarnacion, Anne M. Grunow, Victor A. Valencia, Mark E. Pecha, Jeffrey Benowitz, Paul Layer
Summary: New age data from the Queen Maud Mountains in the Ross orogenic belt of Antarctica reveal that plutonism primarily occurred during the Cambrian to Ordovician periods, with polymodal age distributions consistent with regional magmatic flare-ups along the Pacific-Gondwana margin. Deformed plutons indicate deformation during the Cambrian to Ordovician periods, transitioning to post-tectonic magmatism and cooling at around 509-470 Ma. This suggests that the Queen Maud-Horlick Mountains share a similar petrotectonic history with other regions along the Pacific-Gondwana margin, providing new evidence for their tectonic evolution.
INTERNATIONAL GEOLOGY REVIEW
(2021)
Article
Geochemistry & Geophysics
George D. Kamenov, Jaime Escobar, T. Elliott Arnold, Andres Pardo-Trujillo, Gotzon Gangoiti, Natalia Hoyos, Jason H. Curtis, Broxton W. Bird, Maria Isabel Velez, Felipe Vallejo, Raul Trejos-Tamayo
GEOCHIMICA ET COSMOCHIMICA ACTA
(2020)
Article
Geology
Jared T. Freiburg, Mark E. Holland, David H. Malone, Shawn J. Malone
JOURNAL OF GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Zhiyu Yi, Joseph G. Meert
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Geochemistry & Geophysics
Joseph G. Meert, Anthony F. Pivarunas, David A. D. Evans, Sergei A. Pisarevsky, Lauri J. Pesonen, Zheng-Xiang Li, Sten-Ake Elming, Scott R. Miller, Shihong Zhang, Johanna M. Salminen
Article
Chemistry, Physical
Patrick H. Carey, Shu-Min Hsu, Chaker Fares, George Kamenov, Fan Ren, Josephine Esquivel-Upshaw
Article
Geosciences, Multidisciplinary
Ali A. Khudeir, Jean-Louis Paquette, Kirsten Nicholson, Ake Johansson, Tyrone O. Rooney, Sadiq Hamid, Mohamed A. El-Fadly, Loretta Corcoran, Shawn J. Malone, Mohamed Ali Abu El-Rus
Summary: The Shaitian granite complex in southeast Egypt formed during 80 million years of crustal growth in the Arabian-Nubian Shield. U-Pb zircon dating indicates multiple magma pulses with varying ages, while temperature and pressure variations suggest significant partial melting processes in the formation of distinct rock types within the complex.
GEOSCIENCE FRONTIERS
(2021)
Article
Cell Biology
Anna Picca, Sunil K. Saini, Robert T. Mankowski, George Kamenov, Stephen D. Anton, Todd M. Manini, Thomas W. Buford, Stephanie E. Wohlgemuth, Rui Xiao, Riccardo Calvani, Helio Jose Coelho-Junior, Francesco Landi, Roberto Bernabei, David A. Hood, Emanuele Marzetti, Christiaan Leeuwenburgh
Article
Geosciences, Multidisciplinary
Zhiyu Yi, Tianyue Wang, Joseph G. Meert, Qian Zhao, Yushu Liu
Summary: Studies on Paleocene lavas from the Linzhou Basin in South Tibet indicate that the magnetic characteristics are primary, providing insights into the initial geometry of the India-Asia collision and contributing to the long-term cooling of the Earth.
GEOPHYSICAL RESEARCH LETTERS
(2021)
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
Archaeology
Maciej Kalaska, Ryan Mathur, George Kamenov, Julia Chyla, Patrycja Przadka-Giersz, Milosz Giersz
Summary: This paper presents isotopic analysis of silver and copper artefacts found in a pre-Columbian tomb in Peru. The results suggest that the metals were extracted from primary ore deposits and correlate with similar ores found at other Wari sites. The study also identifies evidence for long-distance interactions and imports from remote regions, indicating the influence of the Wari Empire and Tiwanaku state.
Article
Medicine, Legal
Daniel Castellanos, Elizabeth A. Digangi, Jonathan Bethard, George Kamenov, Gretel Gonzales-Colmenares, Cesar Sanabria
Summary: Colombia is facing the difficult task of locating thousands of missing persons and identifying decayed skeletal remains. Isotopic analysis of human tissues, such as teeth, can provide valuable information on geographic origin and aid in the identification process. This study found significant isotopic variability in Colombian teeth, suggesting the potential utility of isotopic analysis for identifying unidentified individuals in Colombia.
JOURNAL OF FORENSIC SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Inessa Golovanova, Konstantin N. Danukalov, Raushaniia Yu. Salmanova, Natalia M. Levashova, Nikita P. Parfiriev, Nina D. Sergeeva, Joseph G. Meert
Summary: This study presents a detailed analysis of the magnetostratigraphic and cyclostratigraphic profile of the Katav Formation in the southern Urals. The rocks in this formation show primary magnetization. The study also reveals a period of magnetic field reversal hyperactivity in the Neoproterozoic interval.
GEOSCIENCE FRONTIERS
(2023)
Article
Geosciences, Multidisciplinary
Jennifer N. Gifford, Shawn J. Malone, Paul A. Mueller
Meeting Abstract
Anthropology
Cassandra K. Scaffidi, George Kamenov, Gwyneth Gordon, Cristina Tica, Rebecca Ulloa, Kelly Knudson, John Krigbaum
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
(2019)
Meeting Abstract
Anthropology
Gennifer Goad, Kirsten Verostick, Erin Kimmerle, George Kamenov
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
(2019)