Article
Geosciences, Multidisciplinary
Jinyu Zhang, William Ambrose, Ronald Steel, Si Chen
Summary: This study focuses on the spatial and temporal changes of facies and depositional processes in the shallow-marine deltas and estuaries, specifically on the transgressive-regressive cycles. Two long cores were used to describe the cycles and understand the changes in river, wave, and tide process signals. The dominant process in these cycles has significant implications for hydrocarbon production and exploration.
Article
Geology
Till J. J. Hanebuth, Mary Lee King, Francisco J. Lobo, Isabel Mendes
Summary: The study provides a detailed analysis of two main mud depocenters on the continental shelf in the eastern Gulf of Cadiz, revealing that their sedimentation rates and carbon content are influenced by their formation history, external forcing mechanisms, and human activities. These mud depocenters play a significant role in carbon cycling and material transport on a global and regional scale.
SEDIMENTARY GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Abah P. Omale, Juan M. Lorenzo, Ali AlDhamen, Peter D. Clift, A. Alexander G. Webb
Summary: The study in the northern Gulf of Mexico reveals that fault kinematic analysis is effective in evaluating changes in sediment volumes. By correlating changes in fault throw with changes in sediment deposition, inferences can be made about changes in past tectonic and climate-related processes driving sedimentation.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2021)
Article
Multidisciplinary Sciences
Lixin Qu, Leif N. Thomas, Aaron F. Wienkers, Robert D. Hetland, Daijiro Kobashi, John R. Taylor, Fucent Hsuan Wei Hsu, Jennifer A. MacKinnon, R. Kipp Shearman, Jonathan D. Nash
Summary: This study reveals that the summer land-sea breeze interacts with the river plume fronts in the northern Gulf of Mexico, leading to rapid vertical exchange and ventilation, which may impact the dynamics of the region's dead zone.
NATURE COMMUNICATIONS
(2022)
Article
Geology
James S. Eldrett
Summary: The opening of the central Atlantic and proto-Caribbean seaways in the Middle-Late Jurassic period, along with rising sea levels, resulted in the reorganization of oceanography and climate, leading to the development of widespread carbonate platforms and diverse reefs. The first paired organic and carbonate carbon-oxygen isotope records from the Smackover Formation in the Gulf of Mexico provide evidence for a positive carbon isotope excursion correlated to the middle Oxfordian transversarium Zone. These findings suggest a synchronous response of the carbon cycle to the opening of the central Atlantic and proto-Caribbean seaways.
Article
Environmental Sciences
Paulina Guarneros-Narvaez, Rossanna Rodriguez-Canul, Roxana De Silva-Davila, Jesus Alejandro Zamora-Briseno, Monica Amendola-Pimenta, Alejandro Jose Souza, Uriel Ordonez, Ivan Velazquez-Abunader
Summary: Global commercial catches of squid have increased greatly in recent years, but a significant portion of the catches remain unidentified. In the southeastern Gulf of Mexico, the squid catches are often not recorded and their species composition is unknown. This lack of knowledge hinders population evaluation and conservation strategies. This study used morphological and molecular identification tools to analyze the species composition, abundance distribution, and genetic structure of squid in the Yucatan Shelf. The results revealed a dominant species, identified as Doryteuthis pleii, and a continuous gene flow within the population.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
John W. Shepherd, Simon C. Lang, Victorien Paumard, Annette D. George, Daniel Peyrot
Summary: Understanding the stratigraphic architecture of shelf-margin clinoforms is crucial for studying sediment transfer to deep-water settings and the impact of tectonics, sea-level changes, and sediment supply on deep-water sand deposition. The study of the Hammerhead shelf margin in the Bight Basin provides insights into the controls on shelf-margin architecture during the early post-rift phase. The quantitative analysis of clinoform geometry reveals the influence of sediment supply on shelf-margin variability and deep-water sediment delivery.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
C. Austin Clayton, Cornel Olariu
Summary: This study investigates the formation of six large incisions along the northern Gulf of Mexico and suggests that their development was controlled by tectonics rather than eustatic changes. Three possible mechanisms for canyon formation are proposed, all triggered by tectonics. The study also finds that similar incisions align with uplift regions in other parts of the Gulf of Mexico, further supporting the role of tectonism in canyon formation.
Article
Oceanography
Alvaro Carrion-Torrente, Francisco Jose Lobo, Angel Puga-Bernabeu, Maria Lujan, Isabel Mendes, Till J. J. Hanebuth, Susana Lebreiro, Marga Garcia, Maria Isabel Reguera, Laura Anton, David Van Rooij, Javier Cerrillo-Escoriza
Summary: This study aims to determine the driving factors that triggered paleohydrological conditions and sedimentary dynamics of ancient fluvial systems. The paleo-inner-shelf paleovalley system is strongly conditioned by antecedent geology, leading to the formation of estuarine bay-fill deposits and estuary-mouth sands.
CONTINENTAL SHELF RESEARCH
(2023)
Article
Multidisciplinary Sciences
Thomas B. Kelly, Angela N. Knapp, Michael R. Landry, Karen E. Selph, Taylor A. Shropshire, Rachel K. Thomas, Michael R. Stukel
Summary: The open-ocean Gulf of Mexico has highly stratified and oligotrophic surface waters, but anomalous high nitrogen export rates are supported by lateral advection of organic matter.
NATURE COMMUNICATIONS
(2021)
Article
Geosciences, Multidisciplinary
Misael Diaz-Asencio, Juan Carlos Herguera, Felipe Garcia Romero, Patrick Rafter
Summary: This study compares the fluxes and accumulation rates of mass and carbonate in the Gulf of Mexico, using sediment traps and sediment cores. The results show that carbonate fluxes in the sediment traps are similar to the carbonate accumulation rates in the sediments, indicating minimal dissolution processes. The spatial patterns of carbonate accumulation rates are linked to surface productivity and transport processes, with localized areas showing enhanced values. The study estimates the overall carbonate accumulation in the Gulf of Mexico and highlights its importance in the global carbon cycle.
Article
Oceanography
Veronica Ruiz Xomchuk, Robert D. Hetland, Lixin Qu
Summary: The occurrence of seasonal bottom hypoxia in the Northern Gulf of Mexico has been extensively studied, but little is known about internal variability and short-term shifts. This research uses a hydrodynamic model with oxygen parametrization to demonstrate the influence of physical processes with spatial and temporal scales on hypoxia development in the far-field of the Mississippi plume. Variability in advection is found to increase with decreasing temporal and spatial scales, introducing small-scale, strong anomalies in the field. Through a budget decomposition and Reynolds decomposition, the study identifies vertical flux anomalies as the primary counterbalance to sediment oxygen demand during periods of maintaining or destroying hypoxic extent.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Ecology
N. V. Patin, Z. A. Dietrich, A. Stancil, M. Quinan, J. S. Beckler, E. R. Hall, J. Culter, C. G. Smith, M. Taillefert, F. J. Stewart
Summary: Exploration of oxygen-depleted marine environments has led to the discovery of novel microbial taxa and metabolic capabilities, expanding our understanding of microbial evolution and ecology. The study of Amberjack Hole on the Florida continental shelf revealed stable microbial communities with extensive biochemical capabilities for sulfur and nitrogen cycling. Overall, the blue hole habitat provides a natural marine laboratory for sampling taxa with potentially important roles in redox-stratified microbial processes.
Article
Geosciences, Multidisciplinary
Jonathan M. Lilly, Paula Perez-Brunius
Summary: A large dataset of historical surface drifter data from the Gulf of Mexico was collected, processed, and assimilated into a dataset called GulfFlow for studying circulation and variability in the region. The high-resolution mean surface current map obtained from GulfFlow provides a valuable resource, while direct bin-averaging of hourly drifter data was found to lead to severe artifacts due to the inhomogeneous temporal distribution of the drifters.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Geosciences, Multidisciplinary
Robert Cunningham, Marcie Purkey Phillips, John W. Snedden, Ian O. Norton, Christopher M. Lowery, Jon W. Virdell, Craig D. Barrie, Aaron Avery
Summary: Deposition of the Paleocene-Eocene Wilcox Group in the northern Gulf of Mexico was influenced by global climate and regional tectonic changes. Drivers impacting the region included enhanced runoff and sediment supply, global warming, and the restriction of the Gulf of Mexico. The study investigates biological and organic geochemical responses to these drivers and identifies spatial variations in productivity, oxygenation, and ventilation.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Si Chen, Ron Steel, Cornel Olariu, Shunli Li
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2018)
Article
Geosciences, Multidisciplinary
Cristian Vallejo, Diego Tapia, Janeth Gaibor, Ron Steel, Mario Cardenas, Wilfried Winkler, Anne Valdez, Jose Esteban, Mariana Figuera, Jose Leal, Dario Cuenca
MARINE AND PETROLEUM GEOLOGY
(2017)
Article
Geosciences, Multidisciplinary
V. M. Rossi, S. G. Longhitano, D. Mellere, R. W. Dalrymple, R. J. Steel, D. Chiarella, C. Olariu
MARINE AND PETROLEUM GEOLOGY
(2017)
Article
Geology
Jennifer L. Aschoff, Cornel Olariu, Ronald J. Steel
Article
Geology
Chenglin Gong, Yingmin Wang, Michele Rebesco, Stefano Salon, Ronald J. Steel
Article
Geology
Yang Peng, Ronald J. Steel, Valentina M. Rossi, Cornel Olariu
JOURNAL OF SEDIMENTARY RESEARCH
(2018)
Article
Geosciences, Multidisciplinary
Lei Li, Chenglin Gong, Ronald J. Steel
Article
Geology
Chengfa Lin, Shaofeng Liu, Qitian Zhuang, Ronald J. Steel
SEDIMENTARY GEOLOGY
(2018)
Article
Geology
Xiaojie Wei, Ronald J. Steel, Rodmar Ravnas, Zaixing Jiang, Cornel Olariu, Yinsheng Ma
SEDIMENTARY GEOLOGY
(2018)
Article
Geology
Elisabeth Steel, Alexander R. Simms, Ronald Steel, Cornel Olariu
Article
Geology
Rattanaporn Fongngern, Cornel Olariu, Ron Steel, David Mohrig, Csaba Krezsek, Thomas Hess
Article
Geosciences, Multidisciplinary
Changsong Lin, Min He, Ron J. Steel, Zhongtao Zhang, Hao Li, Bo Zhang, Wei Wu, Liangfeng Shu, Hongxun Tian, Xin Zhang, Zuochang Xing, Siqi Wang, Manli Zhang
Article
Geosciences, Multidisciplinary
Si Chen, Ronald Steel, Hua Wang, Rui Zhao, Cornel Olariu
Article
Geosciences, Multidisciplinary
Ronald J. Steel, Cornel Olariu, Valentina M. Rossi, Daniel Minisini, Walter Brinkworth, Laura M. Loss, David Giunta, Griselda Vocaturo
Summary: The outcrop data from the New Cuyo Group provide additional information about the progradational nature of the Neuquen Margin in Argentina during the Lower-Middle Jurassic. The shelf topset, slope break, and deepwater slope to basin-floor deposits showed a progradation of large-scale clinoforms for 120 km. The sediment supply came mainly from the North Patagonian Massif.
Article
Geosciences, Multidisciplinary
Rawan Alasad, Cornel Olariu, Ronald J. Steel
Summary: This study examines the marine flooding of the Mio-Pliocene alluvial fan and fan-delta succession in the Fish Creek Vallecito Basin in southern California. The results show an abrupt lithologic and facies change from subaerial debrites to subaqueous debrites, indicating a subsea-level environment.