Assessing Hydrogen Sulfide Generation from Pyrite Reduction: Implications for Underground Hydrogen Storage

Rana AL Homoud, Marcos Vitor Barbosa Machado, Hugh Daigle

Unconventional Resources Technology Conference (URTEC)

... a mathematical equation involving a fourth-order polynomial in temperature (T), as follows: Log10(Keq) = a0+ a1T + a2T2 + a3T3 + a4T4 (8) 5 URTeC...

Paleoshoreline and Prograding Clinoforms of Oolitic Grainstones of the Miocene Carbonate-Evaporitic Sequences of the Ar-Rajmah Group, Al-Jabal Al-Khdar Uplift and Soluq Trough, Cyrenaica, NE Libya

Khaled S. Amrouni, Michael C. Pope, Ahmed S. El-Hawat, Adel A. Obeidi, Aimen Amer, Hassan S. El-Bargathi, Mohamed SH. Abdalla El-Jahmi, Ahmed M. A. Al-Alwani, Essa A. Elbileikia, Khalid A. M. Mustafa

GCAGS Transactions

... and the fault controlled paleoshoreline of the Cyrenaican Miocene. The prograding clinoforms as fourth order mesoform sedimentary structures (i.e....

The Great American Carbonate Bank in the Central Michigan Basin

William B. Harrison III, G. Michael Grammer

AAPG Special Volumes

... wireline petrophysical logs make the architecture of the fourth-order high-frequency sequences very difficult to ascertain. Further detailed work...

Channel Margins in a Pennsylvanian Braided, Fluvial Deposit: The Morien Group Near Sydney, Nova Scotia, Canada

Martin R. Gibling, Brian R. Rust

Journal of Sedimentary Research (SEPM)

... fine dendritic patterns with branching up to fourth-order. These forms were originally described as fossil plants (Dendrophycus), but Dawson (1868...

Does Local Resuspension Maintain the Benthic Nepheloid Layer in Southeastern Lake Michigan?

Nathan Hawley , Barry M. Lesht

Journal of Sedimentary Research (SEPM)

... lowpass filter to remove the high-frequency variations. Hourly averages were computed prior to applying a fourth-order Butterworth recursive filter...

Populations, Trends, and Cycles in Combined-Flow Bedforms

Indranil Banerjee

Journal of Sedimentary Research (SEPM)

... et al. 1976; Fulthorpe 1991) lies in the middle of this range. Another possibility is the fourth-order to fifth-order eustatic sea-level cycles...

Chapter 63: Channelized, Innermost, Basin-floor-fan Morphologies, Mount Messenger Formation, Waikiekie South Beach and Inland, New Zealand

M. J. Arnot, P. R. King, G. H. Browne, K. Helle

AAPG Special Volumes

... the C5 channelform element. These are located within the basal portion of one fourth- or fifth-order cycle exposed at Waikiekie South Beach (also Panel...

Chapter 112: Channel Architectures and Associated Facies in the Brushy Canyon and Cherry Canyon Formations, Guadalupe Mountains Area, Texas, USA

Roger D. Shew

AAPG Special Volumes

.... These probable fourth-order cycles also contain numerous fifth-order cycles. The Cherry Canyon Formation is dominated by siltstone deposits. A notable...

Chapter 143: Karoo Basin, South Africa: Deep-water Basin-floor and Slope Deposits of the Laingsburg Depocenter

Stephen S. Flint, David M. Hodgson, Peter J. Sixsmith, Martin Grecula, H. De Ville Wickens

AAPG Special Volumes

...) of hemipelagic mudstone, and so each represent approximately 0.4–0.8 m.y., which is consistent with fourth-order cyclicity. Conclusions The early deep-water...

A Simple Universal Equation for Grain Settling Velocity

R.I. Ferguson, M. Church

Journal of Sedimentary Research (SEPM)

... measurements of individual axis lengths in order to compute the nominal diameter of an equivalent sphere, and in one case also a shape factor...

Expanding Role of Computer in Geology

E. L. Dillon

AAPG Bulletin

...-degree or second-order surface is a paraboloid and has the equation [EQUATION] A third-order surface has the equation [EQUATION] The fourth-order...

Tectonic Basis for Anaco Fault, Eastern Venezuela

Ernest E. Murany

AAPG Bulletin

... the structure on a regional basis. More statistical data obviously are needed concerning the worldwide distribution of third- and possibly fourth-order strike...

GCAGS 46th Annual Meeting, October 2–4, 1996, San Antonio, Texas, - Abstracts, #90950 (1996).

Search and Discovery.com

Subsurface Basin Analysis of Fault-Controlled Turbidite System in Bradano Trough, Southern Adriatic Foredeep, Italy

Raffaele Casnedi

AAPG Bulletin

... are overlain by shale and which are probably fourth-order features, can be recognized on electric logs. Reverse faults along the outer margin of the basin...

Stratigraphic organization of carbonate ramps and organic-rich intrashelf basins: Natih Formation (middle Cretaceous) of northern Oman

Frans S. P. van Buchem, Philippe Razin, Peter W. Homewood, W. Heiko Oterdoom, Jean Philip

AAPG Bulletin

...); third-order (0.5ñ3 m.y.); fourth-order, also referred to as high-frequency cycles, parasequences, or genetic sequences (0.5ñ0.08 m.y.); and fifth...

Site-specific sequence-stratigraphic section benchmark charts are key to regional chronostratigraphic systems tract analysis in growth-faulted basins

L. Frank Brown Jr., Robert G. Loucks, Ramn H. Trevio

AAPG Bulletin

..., Corpus Christi Bay, Texas. Six third-order sequences compose the Oligocene Frio and Anahuac formations. Sequence 5 comprises four fourth-order sequences...

Pennsylvanian paleodepositional evolution of the greater Permian Basin, Texas and New Mexico: Depositional systems and hydrocarbon reservoir analysis

Wayne R. Wright

AAPG Bulletin

... to second- to fourth-order eustasy curves and tectonic input. The reservoir evolution diagram and paleodepositional maps used in conjunction...

Basin analysis and sequence stratigraphy of the synrift Tilje Formation (Lower Jurassic), Halten terrace giant oil and gas fields, offshore mid-Norway

Aitor A. Ichaso, Robert W. Dalrymple, and Allard W. Martinius

AAPG Bulletin

... (6.2–18.6 mi) (i.e., at the interfield scale). Several high-order (third- or even fourth-order) FSs occur in the studied interval. They bound...

PSSubmarine Mass Transport Complex Evolution and Control on Overlying Reservoir Deposition, Permian Cutoff Formation, West Texas, by Robert Amerman, Eric P. Nelson, Michael H. Gardner, and Bruce Trudgill, #40194 (2006).

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PSRoles of Geologic Processes along Passive Continental Margins Suggest Dynamic Interrelationships of Cause and Effect, by Allen Lowrie and David T. King, Jr., #70039 (2008).

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Evaluating the Controls on Reservoir Quality and Heterogeneity of Silurian Pinnacle Reefs, Michigan Basin; #50405 (2011)

Audrey L. Varga (Ritter) and G. Michael Grammer

Search and Discovery.com

...- and fifth-order sequences and cycles can be seen in this illustration. Fifth-order, shallowing-upward cycles are bundled into fourth-order, high-frequency...

Sequence Stratigraphy and Depositional Systems Analysis of Paleocene in Lishui Sag, East China Sea Shelf Basin; #50944 (2014)

Ming Zhang, Fa Xu, Jinliang Zhang, Jinshui Liu, Jingzhe Li, Guowei Hou, and Penghui Zhang

Search and Discovery.com

... potential of petroleum exploration in the western gentle slope. The objectives of this article are to (1) document the high-frequency (fourth-order...

Favorable Play Fairways for Abu Gabra Formation in Muglad Basin, Republic of Sudan, #11024 (2017).

Li Zhi, Liu Shuwen, Liu Aixiang, Gao Risheng

Search and Discovery.com

... flank for the basin. According to detailed well correlation and sub-sequence division, five fourth-order sequences can be identified in AG2...

Seismic Geomorphology and Characterization of Deep Water Architectural Elements and its Applications in 3D Modeling: A Case Study in North Carnarvon Basin Australia; #42097 (2017)

Jerson J. Tellez, Roger Slatt

Search and Discovery.com

... A’ SQ 6.1 High frequency fourth order sequences were deposited later from the Oligocene to the Miocene in progradational wedges of deep water deposits...

A Facies and Flow Unit Approach to Porosity Occurrence in the Madison Reservoirs (Frobisher-Alida and Tilston Intervals) of Western North Dakota; #11382 (2024)

David M. Petty

Search and Discovery.com

... is the uppermost fourth-order cycle within the underlying third-order sequence. These intervals consist dominantly of carbonate and evaporite...