Browsing by Subject "Geology"
Now showing items 1-20 of 30
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3-D GEOMETRY AND KINEMATIC EVOLUTION OF THE KUPE INVERSION STRUCTURE, SOUTHERN TARANAKI BASIN, NEW ZEALAND
(2017-12)The Southern Taranaki Basin underwent extension during the Late Cretaceous to Eocene, followed by a compression during the Oligocene to the Late Miocene, resulting in inversion of some of the pre-existing normal faults. ... -
ATMOSPHERIC DUST FROM THE UPPER CARBONIFEROUS COPACABANA FORMATION (BOLIVIA): A HIGH-RESOLUTION RECORD OF CLIMATE AND VOLCANISM FROM NORTHWESTERN GONDWANA
(2016-08-19)This study documents the occurrence of atmospheric dust from Pennsylvanian carbonates of the Copacabana Formation, recovered in core (Mobil-Oxy Manuripi X-1) from the Madre de Dios basin (Bolivia), within southern mid-latitudes ... -
Catastrophic Process Event Stratigraphy of the Rader Member in the Delaware Basin
(2018-12-14)The Bell Canyon Formation, Middle Rader Member, debrite crops out in Guadalupe Mountains (along Highway 62, McKittrick Canyon and vicinity) revealing a Late Guadalupian catastrophic submarine debris slide. The formation ... -
CONSTRAINING INITIATION OF RIFTING IN A MAGMA POOR SYSTEM: LAKE TANGANYIKA
(2024-05-11)The Lake Tanganyika rift is commonly cited as a modern analog for early stages of continental rifting. It lies within the western branch of the East African Rift system (EARS). The modern Tanganyika rift consists of distinct ... -
EVALUATING DESERT SILT PRODUCTION USING FIELD, EXPERIMENTAL, AND REMOTE-SENSING METHODS
(2018-05)Production of the silt that forms loess deposits has been attributed to processes operating in both glacial environments (via glacial grinding) and warm deserts (via saltation-induced fracturing). However, the efficacy of ... -
Experimental and Natural Studies of Mn and the Isotopes of B in Granite-Pegmatite Systems
(2017-12)Partition coefficients (D) and exchange coefficients (KD) for Fe, Mn, and Mg between tourmaline (Tur), garnet (Grt), cordierite (Crd) and granitic melt were measured between 650°C and 850°C at 200 MPaH2O. Manganese is ... -
Experimental Modeling of Geometry and Evolution of Structures above Ductile and Frictional Detachments
(2016-05-13)Fold-thrust belts formed above ductile units like salt are typically characterized by detachment folds, whereas those formed above frictional detachments contain fault-related folds, such as fault-bend folds and duplexes. ... -
Experimental production of dust by replicating aeolian and glacial abrasion
(2023-05-12)Dust is a highly mobile and influential class of sediment. Dust influences the climate, biosphere, and soils, and holds information about Earth’s paleoclimate when preserved in the rock record. In this work we define dust ... -
Global Reconnaissance of Reef Spur and Groove Variability: A Systematic Geomorphic Classification.
(2021-05-16)Spur and Groove (SaG) formations are found on the fore reef of many coral reef systems around the world. SaG features are constructed of coral buildups called “spurs”, and separated by erosive channelized features, or ... -
AN ICEHOUSE DUST RECORD FROM THE UPPER PALEOZOIC (ASSELIAN-ARTINSKIAN, MOSCOVIAN) AKIYOSHI LIMESTONE (JAPAN)
(2016)The Akiyoshi terrane in southwest Japan consists of a subduction-generated accretionary complex of shallow-marine limestone and deep-water spicular chert, underlain by ocean island-type basalt, all of which was obducted ... -
AN INTEGRATED ANALYSIS OF SEQUENCE STRATIGRAPHY, PETROLEUM GEOCHEMISTRY, AND DEVONIAN MASS EXTINCTION EVENTS IN THE WOODFORD SHALE, SOUTHERN OKLAHOMA
(2017-12-16)Geochemical analyses of the Late Devonian-Early Mississippian Woodford Shale have revealed a more dynamic history than previously considered, reflecting discrete changes in the conditions surrounding its depositional ... -
INTEGRATED GEOLOGICAL CHARACTERIZATION AT THE BED SCALE OF THE WOODFORD SHALE AT THE I-35 OUTCROP, SOUTHERN OKLAHOMA
(2017)A road-cut exposure located on the southern flank of the Arbuckle anticline along the Interstate-35 provided the opportunity to document in detail the lithological heterogeneities of the uppermost 81 feet of the Woodford ... -
An Integrated LiDAR-XRF Study and Geomechanical Lithofacies Analysis of the Leonardian Upper Bone Spring Formation, Bone Canyon, Texas
(2019-05)The purpose of this study is to constrain geomechanical parameters effecting hydraulic stimulation networks within the upper Bone Spring formation, through the collection and examination of outcrop data. Data utilized in ... -
An Integrated Paleomagnetic and Diagenetic Study of the Womble Shale in the Benton Uplift, Arkansas
(2021-05-16)The objective of this project is to conduct an integrated paleomagnetic and diagenetic study of the Ordovician Womble Shale in Mt. Ida, Arkansas, in order to test if diagenetic events can be identified and dated with ... -
INTEGRATION OF GEOCHEMISTRY, TOXICOLOGY, AND EPIDEMIOLOGY TO EVALUATE THE LIGNITE-WATER HYPOTHESIS IN THE UNITED STATES GULF COAST REGION
(2017-12-15)Many Gulf Coast states including Arkansas, Texas and Louisiana rely on groundwater from aquifers that contain low-rank coal called lignite. These lignite seams may be a source of dissolved organic matter, and continuous ... -
Loess in eastern equatorial Pangea archives a dusty atmosphere and possible upland glaciation
(2020-06-19)Carboniferous−Permian strata in basins within the Central Pangean Mountains in France archive regional paleoequatorial climate during a unique interval in geological history (Pangea assembly, ice-age collapse, megamonsoon ... -
PALEOMAGNETIC ANALYSIS OF THE FLYNN CREEK AND WELLS CREEK IMPACT STRUCTURES, TENNESSEE, U.S.A.
(2019)The Flynn Creek impact structure consists of a 3.8-km circular feature that contains deformed Ordovician through Devonian limestones and dolomites. The age of this structure is stratigraphically constrained by the ... -
Photogrammetric sand grainsize analysis of a circumnavigational sampling of beaches of the big island of Hawaii: possible insight into controlling processes and provenance
(2021)A circumnavigational photogrammetric sampling of the sands on the island of Hawai’I was done using the photogrammetry program pyDGS. The island of Hawai’i provides a perfect landscape to test the viability of pyDGS since ... -
REGIONAL STRATIGRAPHY AND DIAGENETIC CHARACTERIZATION OF THE MISSISSIPPIAN MERAMEC, OSAGE, AND SYCAMORE FORMATIONS, ANADARKO BASIN, CENTRAL OKLAHOMA
(2019-05)The principal goals of this study were to characterize the regional stratigraphy, analyze the extent of diagenetic alteration, and determine the factors controlling reservoir quality of the Meramec, Osage, and Sycamore ... -
Regional stratigraphy and organic richness of the Mississippian Meramec and associated strata, Anadarko Basin, central Oklahoma
(2018-05)The Mississippian Meramec Series and laterally equivalent units of the Caney and Sycamore formations of central and south-central Oklahoma generally consist of a succession of interbedded quartz-rich calcareous siltstones, ...