Article
Geosciences, Multidisciplinary
Hassan Nasir Mangi, Ruan Chi, Jun Zhao, Detian Yan, Lara Sindhu, Dongsheng He, Zixin He, Jing Li, Umar Ashraf, Hongbo Wang
Summary: The author studied the thick coal seam in the Lower Indus Basin using various scientific methods and found that the depositional system includes shallow marine sequences, and wet-dry cyclic conditions are the main factor in the formation of the thick coal seam.
NATURAL RESOURCES RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Dawei Lv, Yangyang Shen, A. J. Tom van Loon, Munira Rajid, Zhihui Zhang, Guangzeng Song, Zhouhe Ren, Yujia Wang, Dongdong Wang
Summary: The Yan'an Formation in the Ordos Basin is a significant coal reservoir in the Jurassic period. The investigation of its lacustrine context reveals that coal development was influenced by fluctuations in lake level. The findings contribute to the understanding of coal formation theory and improve coal exploitation efficiency in basins like the Ordos Basin.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Energy & Fuels
Ali Ihsan Karayigit, Riza Gorkem Oskay, Yakup celik
Summary: The late Oligocene coal seams in the Malkara coal field are influenced by vegetation and detrital input ratio, exhibiting high TOC and high hydrogen content, mainly generating natural gas. The Rock-Eval pyrolysis data should be used cautiously and verified with traditional coal parameters to avoid misinterpretations.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Marie Olivier, Sylvie Bourquin, Guy Desaubliaux, Celine Ducassou, Camille Rossignol, Gautier Daniau, Dan Chaney
Summary: This study investigates the evolution of depositional environments in the Late Pennsylvanian-early Permian of the Paradox Basin in Utah, USA, through detailed sedimentological and high-resolution sequence stratigraphic analyses. The study aims to define a model of landscape evolution, discuss the stratigraphic model, and evaluate the significance of cyclicity in the paleoclimatic context. The findings reveal complex interactions between aeolian, fluvial, and marine environments in the Permian succession of the Paradox Basin, and highlight the importance of high-resolution stratigraphic analyses in understanding cyclicity in the Late Paleozoic Ice Age paleoclimatic context.
Article
Energy & Fuels
Quanshu Zeng, Zhiming Wang, Tianhao Huang
Summary: Understanding the sensitivity of permeability to stress and temperature can help predict permeability distribution and reveal the relationship between permeability and temperature changes. The experimental results show that coal permeability decreases exponentially with increasing stress, and the impact of temperature on permeability varies depending on the stress level. Additionally, the study suggests that the permeability change with temperature may reverse at specific stress points.
Article
Geosciences, Multidisciplinary
Mingyu Zhu, Longyi Shao, Bin Sun, Haipeng Yao, Amalia Spina, Shimin Ma, Shuai Wang, Jinyun Fan, Jian-An Li, Sheng Yan
Summary: This study analyzes the sedimentary facies, sequence stratigraphy, paleogeography, and coal accumulation characteristics in the Huhehu Sag, providing insights into the formation and distribution patterns of coal in the region. The results can be used to predict favorable areas and depositional environments for coal and coalbed methane exploration.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Istvan Csato, Orsolya Homonnai, Csilla Zadravecz, Octavian Catuneanu
Summary: The study presents a sequence stratigraphic interpretation of subsurface data in a Lower Carboniferous lagoon setting in the northern boundary zone of the Precaspian Basin. The proposed model enables the reconstruction of relative sea-level history and refines the understanding of geological evolution and eustatic changes in the Caspi region during the Lower Carboniferous. The article highlights the formation of semicircular carbonate mounds in the Devonian period that enclosed a lagoon opening towards the Caspi Sea, emphasizing the significance of sea-level changes and sediment distribution within the lagoon.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Mebatseyon Shawel, Vikram Unnithan, Tilahun Mammo
Summary: The Ogaden Basin in Ethiopia is a large sedimentary basin with significant potential for hydrocarbon resources. Previous studies have mainly focused on the sedimentology and lithostratigraphy of the basin, while this study provides an integrated sequence stratigraphic analysis of the Karoo section using seismic reflection and well data. The study suggests that tectonic control plays a major role in the formation of the basin and the distribution of reservoirs.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Energy & Fuels
Hafidz Noor Fikri, Reinhard F. Sachsenhofer, Achim Bechtel, Doris Gross
Summary: Coal seams of different ages in the Barito Basin in Borneo were studied to compare their characteristics. The study revealed differences in peat types, flora, and climate between the Late Eocene and middle Miocene coals. The Miocene coals were significantly thicker and displayed a cyclic structure compared to the Eocene coals. The Miocene coals were dominated by more decay-resistant angiosperm trees and had a higher abundance of preserved plant tissues. Fungal activity was high in both Eocene and Miocene coals.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Hongyue Duan, Weidong Xie, Jianguang Zhao, Tengfei Jia
Summary: Datong Basin in China is a significant coal-bearing geological unit, with Tashan Mine being a valuable location in the middle-eastern part of the basin. Research has revealed the distribution characteristics and coal accumulation model of the coal seams, identifying sequence boundaries and system tract boundaries.
Article
Geosciences, Multidisciplinary
Robert Jacobi, Joel Starr, Craig Eckert, Charles Mitchell, Alan Leaver
Summary: The newly identified relay ramps and rhombochasms in the northern Appalachian Basin require significant revision to the structural style, timing, and hydrocarbon migration components of the basin evolution model.
Article
Multidisciplinary Sciences
Yanru Wang, Changsong Lin, Zhongtao Zhang, Bo Zhang, Hanyao Liu
Summary: This study investigates the characteristics and evolution of fluvial-deltaic depositional systems in the Pearl River Mouth Basin, finding that the paleo-Pearl River transported a large amount of sediments to the northwest of the basin during the early Miocene, resulting in the formation of a large-scale river-delta depositional system. This system was mainly controlled by sea level change, tectonic subsidence, and sediment supply.
SCIENTIFIC REPORTS
(2021)
Article
Geosciences, Multidisciplinary
Mei Mei, Alan K. Burnham, Noelle Schoellkopf, Johannes Wendebourg, Francois Gelin
Summary: Improved understanding and prediction of petroleum expulsion, retention, and producibility from source rocks in the Lower Vaca Muerta Formation in the Neuquén Basin, Argentina were achieved through the integration of 3D basin modeling with customized compositional kinetics and retention modeling. The modeling results demonstrate basin-wide petroleum expulsion starting in the late Cretaceous and ceasing in the mid-Eocene, with different types of expulsion occurring at different thermal maturity levels, leading to changes in rock properties and petroleum composition.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Oumar Ibrahima Kane, Mingyi Hu, Quansheng Cai, Qingjie Deng, Wenjie Yang, Mingtao Zuo
Summary: Ordovician strata in the Sichuan Basin are poorly exposed with unclear facies types and controversial sequence stratigraphy. This study provides valuable insights into the depositional environment, sequence stratigraphy, and paleogeography of the Ordovician units in the basin. The results reveal the variations in carbon isotope curve and the tectonic control on the paleogeographic pattern of the Sichuan Basin. Rating: 8/10
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Yueyue Bai, Qingtian Lu, Zhaojun Liu, Pingchang Sun, Rong Liu, Shuqing Yao
Summary: The Meihe Basin is an important Paleogene coal-bearing basin located in the Dunhua-Mishan Fault Zone, northeastern China. By studying well logs, seismic profiles, cores and rock geochemical properties, it was found that coal seams in the basin are usually developed in stable depositional environments such as lake swamps, with thick, continuous and widely distributed coal seams that are economically attractive for mining. These key findings could provide guidance for the exploration of coal seams in the Meihe Basin and other similar basins.
INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Bonita J. Barrett, David M. Hodgson, Christopher A. -L. Jackson, Christopher Lloyd, Junia Casagrande, Richard E. Ll. Collier
Summary: Interactions between footwall-, hangingwall- and axial-derived depositional systems in rift basins make stratigraphic architecture prediction challenging. Distinguishing between deposits derived from fault-scarp degradation and long-lived catchments is crucial for hydrocarbon exploration. The study emphasizes the need to consider multiple sediment sources for tectono-stratigraphic models in rift basins.
Article
Geology
Grant Cole, Rhodri Jerrett, Matthew P. Watkinson
Summary: Understanding mouth bar morphodynamics is crucial for predicting sediment deposition, coastal geomorphic changes, and reservoir heterogeneity. Mouth bars grow through repeated cycles, with new accretion elements forming as the bar expands vertically and horizontally. The architecture and facies distributions of mouth bars are the result of intrinsic processes.
Article
Geosciences, Multidisciplinary
L. A. S. Hansen, D. M. Hodgson, A. Ponten, C. Thrana, A. Obradors Latre
Summary: The study of the Halten and Donna terraces in offshore mid-Norway reveals that sedimentation in weakly confined post-rift sub-basins is predominantly influenced by axial and transverse sources, leading to a complex stratigraphic architecture.
Article
Geology
Aurelia M-L J. Privat, David M. Hodgson, Christopher A-L Jackson, Ernesto Schwarz, Jeff Peakall
Summary: The study reveals the stratigraphic architecture of Early Jurassic strata along the Chachil Graben, documenting the sedimentological and stratigraphic expression of the syn-rift to post-rift transition, as well as variations in sediment supply and dispersal patterns across rift-related topography. The effects of sediment gravity flows on intraslope lobes are highlighted, along with the influence of inherited compaction hinges on early post-rift lobes.
Article
Geology
Neil C. Mitchell, Rhodri Jerrett, Rob Langman
Summary: Repeated multibeam echo-sounder surveys of Nash Sands in the Bristol Channel between 2002 and 2010 revealed the morphological evolution and stratigraphic deposition processes of the tidal sand ridge. Results showed a relationship between changes in ridge morphology and extreme wave heights, with sand accumulation during times of more extreme waves. The study demonstrates how repeated sonar measurements can provide insights into the processes and timescales leading to the deposition of stratigraphic units.
Article
Geosciences, Multidisciplinary
Euan L. Soutter, Ian A. Kane, David M. Hodgson, Stephen Flint
Summary: Submarine canyons are important conduits for sediment transport, with tectonics being the dominant control on their concavity. The position of canyons and present-day onshore climate also influence their concavity.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Geology
Jaco H. Baas, Megan L. Baker, Patricia Buffon, Lorna J. Strachan, Helen C. Bostock, David Hodgson, Joris T. Eggenhuisen, Yvonne T. Spychala
Summary: A revised equation for the hindered settling of non-cohesive particles in fluids is proposed in this study, based on a large dataset from various scientific fields. This equation allows for predictions of settling velocity for different particle sizes, densities, and fluid conditions, with a focus on sediment particles in water. The study also reveals that hindered settling becomes more significant as particle size decreases, and even a small percentage of particle concentration can affect the settling behavior.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Charlotte Allen, Luz E. Gomis-Cartesio, David M. Hodgson, Jeff Peakall, Juan-Pablo Milana
Summary: This study documents the evolution of two adjacent and partially contemporaneous submarine channel-fills, highlighting the formation of submarine landslides and their impact on geomorphology changes. The channels show deep incision and steep lateral margins, with the landslide material being covered by stepped basal erosion surfaces and clasts. This study provides insight into the complex sedimentary processes associated with submarine landslides and their influence on channel evolution.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Hannah L. Brooks, Makoto Ito, Valentin Zuchuat, Jeff Peakall, David M. Hodgson
Summary: This article presents a rare example of an exhumed channel-lobe transition zone from an active-margin setting in Japan. The study reveals obliquity-driven glacioeustatic sea-level cycles and the impact of climate changes on stratigraphic architecture.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Kevin Boulesteix, Miquel Poyatos-More, Stephen S. Flint, David M. Hodgson, Kevin T. Taylor, Rufus L. Brunt
Summary: This study investigates the sedimentology and stratigraphy of mudstones in the Laingsburg depocentre of the Karoo Basin, South Africa. It presents criteria to distinguish between slope and basin-floor mudstones and discusses their depositional processes and facies organization. The findings challenge the common attribution of deep-water mudstones to periods of sediment starvation, suggesting mud can be delivered to deep-water environments dominantly by sediment gravity flows.
DEPOSITIONAL RECORD
(2022)
Article
Geosciences, Multidisciplinary
Junia Casagrande, David M. Hodgson, Jeff Peakall, Pedro Monteiro Benac
Summary: This study investigates the evolution of a sand-prone turbidite system in offshore Brazil, proposing a new stratigraphic model to explain the resultant depositional architecture impacted by vertical and lateral deformation. The study highlights the complex stratigraphic patterns resulting from subtle dynamic slope deformation punctuated by discrete sediment supply cycles, indicating repeated cycles of fill-and-spill, tilt-and-repeat in other stepped slope systems.
Article
Geology
Ashley J. M. Ayckbourne, Rhodri M. Jerrett, Miquel Poyatos-More, Matthew P. Watkinson, Ian A. Kane, Kevin G. Taylor
Summary: This study examines the influence of post-emplacement creep and orientation of topographic features on mass-transport deposits on the routing and deposition of contemporaneous turbidity currents. Two outcrop examples from the Eocene slope succession of the Ainsa Basin in the Spanish Pyrenees are described to illustrate these influences.
Article
Geology
Lauren K. O'Connor, Emily Dearing Crampton-Flood, Rhodri M. Jerrett, Gregory D. Price, B. David A. Naafs, Richard D. Pancost, Paul McCormack, Aris Lempotesis-Davies, Bart E. van Dongen, Sabine K. Lengger
Summary: A study of fossil peats in Canada suggests that the average annual air temperature during the end of the Cretaceous and the beginning of the Paleogene varied, with the highest temperature reaching 29°C. The range of temperature change on land is greater than that derived from marine proxy records. These findings help us better understand the temperature changes on land during the critical period of dinosaur extinction and the rise of mammals.
Article
Geosciences, Multidisciplinary
Roxana M. M. Stanca, David M. M. Hodgson, Dave J. J. McCarthy, Estelle J. J. Mortimer
Summary: Continental break-up is often accompanied by intracontinental wrenching, leading to the formation of transform margins and transform marginal plateaus. The Falkland Plateau is an example of a transform marginal plateau, where regional wrenching resulted in a mosaic of crustal types in the Falkland Plateau Basin. The uncertainties in crustal boundaries have hindered the development of a reliable plate reconstruction of Southern Gondwana. By integrating seismic reflection, gravity, and magnetic data, an updated crustal architecture of the Falkland Plateau Basin is proposed, providing new insights into the tectonic evolution of the plateau and our understanding of such areas.
Article
Geochemistry & Geophysics
Arthur Goodwin, Romain Tartese, Russell J. Garwood, Rhodri Jerrett, Katherine H. Joy
Summary: The Stac Fada Member (Stoer Group) is a melt-rich impact breccia similar to 1.2 billion years old, found on the northwest coast of Scotland. Through X-ray diffraction and micro-Raman spectroscopy, we have identified potential coesite and disordered carbon phases, along with micron-sized diamonds, within the impact breccia. It has been determined that the majority of the carbon present in the Stoer Group originated from the underlying Lewisian basement.
METEORITICS & PLANETARY SCIENCE
(2023)