Article
Biology
Fan Liu, Christian B. Skovsted, Timothy P. Topper, Zhifei Zhang
Summary: Doliutheca orientalis is a fossil species from the early Cambrian of the Three Gorges area in southern China. It possesses unique shell structures and belongs to the group of hyoliths, showing variations in both internal and external morphology.
Article
Geography, Physical
Christopher R. Fielding, Tracy D. Frank, Katarina Savatic, Chris Mays, Stephen McLoughlin, Vivi Vajda, Robert S. Nicoll
Summary: This study investigates the upper part of the upper Permian succession in the Bowen Basin of Queensland, NE Australia, and aims to determine the timeline and character of environmental changes leading up to the End-Permian Extinction. The research reveals a series of intermittent stepwise changes, including volcanic activity, cold conditions, and glaciation, in this region. In contrast, the terrestrial ecosystems show remarkable consistency during this period.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Energy & Fuels
Brooke A. Davis, Sandra Rodrigues, Joan S. Esterle, Ai D. Nguyen, Alexander J. Duxbury, Suzanne D. Golding
Summary: Apatite in coal seams of the Late Permian in the Bowen Basin shows varied origins, including pore-apatites, fracture-apatites, detrital-apatites, and encrusting-apatites. Despite different modes of occurrence, the apatites analyzed in this study are predominantly fluorapatite, with minor variation in trace-element chemistry by mode of occurrence. Further investigation is needed to verify the geothermal source of apatite formation and isotopic composition analysis may provide important insights.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2021)
Article
Geography, Physical
Xueqian Feng, Zhong-Qiang Chen, Laishi Zhao, Zhongwu Lan
Summary: The study describes Guadalupian (middle Permian) ichnoassemblages, identifying multiple facies and trace types, indicating biodiversity and behavioral diversity. Changes in traces from the Permian to Middle Triassic suggest potential ichnological evolution.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geology
Christopher R. Fielding, Tracy D. Frank, Allen P. Tevyaw, Katarina Savatic, Vivi Vajda, Stephen McLoughlin, Chris Mays, Robert S. Nicoll, Malcolm Bocking, James L. Crowley
Summary: The Upper Permian to Lower Triassic coastal plain successions of the Sydney Basin in eastern Australia have been investigated to assess palaeoenvironmental changes. Explosive volcanic eruptions during the late Permian and some during the Early Triassic influenced these basins, providing high-resolution age determination. The end-Permian Extinction marked the shift towards better-drained alluvial conditions into the Early Triassic, with no immediate aridification after the extinction event.
Article
Economics
Luke Butler, Tan Yigitcanlar, Alexander Paz, Wala Areed
Summary: This study examines the geographic context and factors influencing attitudes towards smart mobility through quantitative data analysis, revealing that overcoming private vehicle use, user aversion to multimodality, and reluctance to share rides with strangers are significant barriers to the implementation of smart mobility.
JOURNAL OF TRANSPORT GEOGRAPHY
(2022)
Article
Environmental Sciences
Lei Hu, Wenbin Jiang, Xuesong Xu, Huiyao Wang, Kenneth C. Carroll, Pei Xu, Yanyan Zhang
Summary: In this study, a suite of in vitro toxicity assays were developed to investigate the toxicological characterizations of produced water (PW) from the Permian Basin. The results revealed that high salinity was the foremost toxicological driver in PW, and organic contaminants might also play a critical role in PW toxicity. Strong correlations were found between observed toxicity and associated chemical characterizations in different PW samples. The combination of multiple pretreatments led to a more significant decrease in toxicity compared to single pretreatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Hepeng Tian, Majie Fan, Victor Valencia, Kevin Chamberlain, Lowell Waite, Robert J. Stern, Matthew Loocke
Summary: This study reports the geochronology and geochemistry of volcanic tuffs in southwestern Laurentia, providing insights into the magmatic sources and plate reorganization related to Laurentia-Gondwana collision. The results suggest a late Cisuralian plate reorganization caused by plate reorganization following Pangea assembly. The change in eHf values of zircons indicates magmatism related to subduction of a paleo-Pacific oceanic plate beneath western Pangea.
Article
Geochemistry & Geophysics
Helge Behnsen, Carl Spandler, Isaac Corral, Zhaoshan Chang, Paul H. G. M. Dirks
Summary: The study explores geochemical indicators of magma fertility in volcanic rocks from two locations, finding distinct differences in immobile trace element concentrations between mineralized and unmineralized volcanic suites. The differences in V/Sc and La/Yb ratios suggest variations in magma evolution and conditions, highlighting the potential application of these geochemical proxies in assessing Cu-Au mineralization in convergent margin terranes.
Article
Geochemistry & Geophysics
Chunguang Zhang, Jun Wang, Mingshi Feng, Zhiqiang Shi, Fang Xiang, Mingcai Hou, Shuai Yang, Ben Kneller, Hongde Chen
Summary: This study describes the Late Permian coal deposits and important information about the evolution of the mass extinction event at the end of the Permian. The results show that the dominant coal maceral group is vitrinite, with occurrences of quartz, chamosite, and pyrite as coal minerals.
Article
Energy & Fuels
Xiaomin Xie, Ye Wang, Jingwen Lin, Fenting Wu, Lei Zhang, Yuming Liu, Xu Hu
Summary: Lipid biomarkers are crucial in oil-source rock correlations. The study revealed that Tasmanite oil shale generated significant amounts of hydrocarbons at low temperatures, with differences in compositions between expelled oil and residual oil. Additionally, maturity-related biomarkers and sterane distributions varied with pyrolysis temperature, indicating the importance of considering the impact of maturity on compound abundance.
Article
Biochemistry & Molecular Biology
Alexander V. Khramov, Sergey V. Naugolnykh, Piotr Wegierek
Summary: Insect pollination is a characteristic of flowering plants. Fossil records show that insects with elongate siphonate mouthparts, similar to those seen in present-day nectarivorous beetles and hymenopterans, existed long before the flowering plants. These insects most likely used their proboscis to obtain pollination drops and sugary fluids from cones of extinct gymnosperms. A recent discovery in Russia of long-proboscid holometabolous insects from the Early Permian provides evidence of a pollination mutualism with gymnosperms, suggesting that the complex interactions between pollinators and gymnosperms predates the first flowering plants by over 100 million years.
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
Brave Manda, Renatus Kachira, Habibu Mohamed, Simon C. George
Summary: This study analysed samples of Permian high latitude sedimentary rocks from the southern Sydney Basin using organic geochemical methods. The results showed differences in organic matter inputs, thermal maturity, and depositional environment. The samples came from two boreholes (ECR-DDH01 and ECR-DDH07) and various formations, such as Berry Siltstone and Nowra Sandstone. The study revealed variations in total organic carbon content and thermal maturity between the samples from different boreholes and formations.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Hao Yang, Zhong-Qiang Chen, Xi Mei, Yadong Sun
Summary: Microconchids, small spiral worm tubes, are associated with Claraia shells in the Lower Triassic borehole sections of the Perth Basin, Western Australia. This high-abundance, low-diversity assemblage lived in shallow, restricted interior seas with oxygen-poor conditions, representing disaster forms after the P-Tr mass extinction. Their wide geographical distribution and small body size, along with high tolerance to environmental stresses, allowed them to succeed in the Triassic.
GEOLOGICAL JOURNAL
(2021)
