Article
Geochemistry & Geophysics
Tara N. Jonell, Liviu Giosan, Peter D. Clift, Andrew Carter, Lisa Bretschneider, Ed C. Hathorne, Marta Barbarano, Eduardo Garzanti, Giovanni Vezzoli, Thet Naing
Summary: This study presents the first comprehensive analysis of the Holocene Irrawaddy megadelta, providing insights into the late Neogene evolution of the Irrawaddy River. The results show that the river's evolution is more in line with regional evidence for kinematic reorganization during late-stage India-Asia collision. The study also highlights the importance of late Miocene basin inversion and uplift along the Sagaing Fault in shaping the modern geometry and provenance of the Irrawaddy River.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Pascal Asmussen, Brett Pidgeon, Oliver Gaede, David Gust, Thomas Flottmann
Summary: The Surat Basin is a shallow intracratonic basin that developed in response to the Gondwanan breakup and is significant for Coal Seam Gas production. The identification of the boundary between the Walloon Coal Measures and the overlying Springbok Sandstone is crucial for the stratigraphic framework and groundwater flow units. Sediment provenance analysis using detrital zircon U-Pb geochronology facilitates the identification of basin dynamics within the Surat Basin.
Article
Geography, Physical
Yetong Wang, Guoqiang Sun, Shangshang Bo, Shuang Fu, David Cruset, Juan Diego Martin-Martin, Hui Guo, Irene Cantarero, Vinyet Baques, Guojun Chen, Shuncun Zhang, Anna Trave
Summary: This paper investigates the provenance of the Cenozoic sediments filling the Qaidam Basin by analyzing petrology, major elements, trace elements, rare earth elements, and Zircon U-Pb dating. The results reveal the complex interaction between orogenic belts and surrounding sedimentary basins and the role of plate collision in the basin-mountain coupling process.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geosciences, Multidisciplinary
A. S. Tabaud, P. Stipska, S. Mazur, K. Schulmann, J. Mikova, J. Wong, M. Sun
Summary: The study of rocks samples from GSM in Poland, using geochemistry and isotopic data, revealed the origin and geological evolution of sedimentary rocks in the area, suggesting that it may have been located along the northern periphery of the Gondwana margin, forming in the middle to late Cambrian period.
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
Geosciences, Multidisciplinary
Juan Moises Casas-Pena, Juan Alonso Ramirez-Fernandez, Fernando Velasco-Tapia, Eduardo Alejandro Aleman-Gallardo, Carita Augustsson, Bodo Weber, Dirk Frei, Uwe Jenchen
Summary: The study describes the Tamatan Group in the Huizachal-Peregrina Anticlinorium in northeastern Mexico, proposing a provenance model based on new petrological and geochemical data. The sediments show derivation from various rock types, intense weathering, and high recycling of the source area.
Article
Geosciences, Multidisciplinary
Stijn Glorie, Jack Gillespie, Alexander Simpson, Sarah Gilbert, Andrei Khudoley, Nadezhda Priyatkina, Martin Hand, Christopher L. Kirkland
Summary: Apatite is increasingly used in sedimentary provenance studies, but detrital apatite U-Pb geochronology can be challenging. By contrast, the Lu-Hf system in apatite has a higher closure temperature and is more robust, providing a powerful new tool for provenance studies.
Article
Geology
Shi-Jiong Han, Yan-Chen Yang, Jun-Wei Bo, Zi-Heng Han, Yong-wei Huang, Yun-bao Yang
Summary: The Sipingshan gold deposit in eastern Wandashan Terrane is of intermediate size and is known for its unique hot spring genetic type. Gold orebodies are mainly found in upper and lower siliceous rocks, with siliceous cemented breccia in between. Two main mineralisation periods have been identified based on mineral paragenesis and crosscutting vein relationships. Analytical methods including whole-rock geochemistry, pyrite Rb-Sr dating, zircon U-Pb-Hf contents, and isotopic analysis were conducted to determine the age and genesis of the gold mineralisation.
ORE GEOLOGY REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
J. R. Malone, I. W. D. Dalziel, P. Stone, B. K. Horton
Summary: New research on Paleozoic clastic deposits of the Falkland/Malvinas Islands provides insights into the plate tectonic history, paleogeography, and basin evolution of this enigmatic region. The results suggest that the islands may have originated as part of the South American continent or as a separate microplate displaced from Africa.
Article
Geosciences, Multidisciplinary
J. Arribas, G. Garzon, R. Tejero, M. Tsige
Summary: The Rana unit is a relict alluvial fan unit located on the northern border of the Guadiana Basin, with sediment provenance from intensely weathered products, indicating the influence of chemical weathering on sediment source and maturity.
Article
Geosciences, Multidisciplinary
Masahiro Ohkawa, Makoto Takeuchi, Yuxiao Li, Sakurako Yabuta, Koshi Yamamoto
Summary: This study investigates the tectonic evolution and provenance characteristics of the late Paleozoic to early Mesozoic collision-related orogeny in Japan using morphological analysis and U-Pb ages of detrital zircons. The results show that the late Paleozoic zircons were derived from nearby sources, while the pre-late Paleozoic zircons were supplied from distant sources under strong hydrodynamic conditions. Combining the geological information of East Asia, the study reveals a change in sources from the Southern zone of the Maizuru Belt to multiple areas, supporting the collision of the island arc and continental margin of the Sino-Korean Block during the middle Permian.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Zuoqiang Li, Fengjie Li, Zheng'an Chen, Xuelian Lai, Xiaokang Ma
Summary: We conducted U-Pb geochronology and Hf isotope analyses on detrital zircons from the Late Mesozoic strata in the Zhenyuan area to determine the source and variation characteristics of sandstone-type uranium deposits in the southwest Ordos Basin. The results suggest that the provenance of the sandbody mainly originated from the Alxa Block to the northwest and the Yinshan Block to the north, with minor contributions from the Caledonian magmatic rocks and Jingning Period rocks to the west and south. The variations in zircon ages in different formations were likely influenced by climate change during the Middle-Late Jurassic.
JOURNAL OF EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Semih Gursu, Serhat Koksal, Andreas Moeller, George D. Kamenov, M. Cemal Goncuoglu, Kevin Hefferan, Paul A. Mueller, Huseyin Kozlu
Summary: The detrital U-Pb age peaks and Lu-Hf systematics of peri-Gondwanan units in southern Turkey suggest their derivation from Neoproterozoic igneous suites in the Sinai Peninsula, Israel, and the Eastern Desert. These sediments were likely derived from sedimentary recycling processes in a continental back-arc tectonic setting. The provenance of the sediments correlates with nearby regions such as the Nubian Shield and Saharan Metacraton.
Article
Geosciences, Multidisciplinary
Maria Belen Febbo, Renata N. Tomezzoli, Nora N. Cesaretti, Giselle Choque, Natalia B. Fortunatti, Guadalupe Arzadun
Summary: The Claromeco Basin, located in the south-western sector of the Buenos Aires province, Argentina, is considered a foreland basin closely related to the evolution of the southwestern Gondwana margin. This study focuses on the provenance analysis of the Tunas Formation, which represents the last filling stage for the basin. The results reveal that the sedimentary material comes from the Sierras Australes fold and thrust belt located towards the W-SW. The Tunas Formation shows clear differences compared to the underlying units, indicating changes in the basin configuration during the Late Paleozoic.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2022)
Article
Geosciences, Multidisciplinary
Maria Belen Febbo, Renato N. Tomezzoli, Nora N. Cesaretti, Giselle Choque, Natalia B. Fortunatti, Guadalupe Arzadun
Summary: The Tunas Formation in the Claromeco Basin of Argentina represents the final filling stage of the foreland basin and is derived from a mixed source predominantly from the Sierras Australes fold and thrust belt in the W-SW. The composition patterns, paleoenvironmental conditions, and tectonic scenarios of the Tunas Formation differ significantly from the underlying units of the Pillahuinco Group, indicating changes in the basin configuration during the Late Paleozoic due to compressive post-collisional deformation events.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2022)