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Integration Of Seismic Log And Core Data For Late Miocene To Pleistocene Sequences At The New Jersey Outer Continental Shelf Odp Leg 174a Sites 1071 And 1072
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Book Synopsis Integration of Seismic, Log, and Core Data for Late Miocene to Pleistocene Sequences at the New Jersey Outer Continental Shelf (ODP LEG 174A, Sites 1071 and 1072). by : John Marshall Metzger
Download or read book Integration of Seismic, Log, and Core Data for Late Miocene to Pleistocene Sequences at the New Jersey Outer Continental Shelf (ODP LEG 174A, Sites 1071 and 1072). written by John Marshall Metzger and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Micropaleontologic Proxies for Sea-level Change and Stratigraphic Discontinuities by : Hilary Clement Olson
Download or read book Micropaleontologic Proxies for Sea-level Change and Stratigraphic Discontinuities written by Hilary Clement Olson and published by . This book was released on 2003 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Seismic Surveying for Pleistocene Sequence Stratigraphy New Jersey Continental Shelf and Upper Slope in Support of Strataform by :
Download or read book High Resolution Seismic Surveying for Pleistocene Sequence Stratigraphy New Jersey Continental Shelf and Upper Slope in Support of Strataform written by and published by . This book was released on 1997 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contract provided support to plan, acquire, and process high resolution multichannel seismic reflection data offshore New Jersey during cruise 270 of the R/V Oceanus. This was part of the STRATAFORM initiative that seeks geologic and geophysical data on the continental terrace at temporal and spatial scales ranging from 0.1 to 100000 yrs and .01 to 1000 m. Our cruise objectives were to collect high resolution reflection images of stratal geometry in the upper 100+ m of the sediment column from the middle shelf to the upper continental slope, and tie these to ODP Leg 150 sites cored and logged in 1993.
Book Synopsis Upper Middle to Upper Miocene Seismic Sequences, New Jersey Middle to Outer Continental Shelf by : Tuce Degirmenci
Download or read book Upper Middle to Upper Miocene Seismic Sequences, New Jersey Middle to Outer Continental Shelf written by Tuce Degirmenci and published by . This book was released on 2014 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Miocene stratigraphic succession on the middle to outer continental shelf off New Jersey, immediately south of the Hudson Canyon, is examined using high-resolution 2D multichannel seismic (MCS) and log data to evaluate sequence stratigraphic models, aided by results of Integrated Ocean Drilling Program (IODP) Expedition 313. High sedimentation, associated with extensive progradation and aggradation, provides a higher resolution record in this region than elsewhere on the shelf. The study of 29 MCS profiles and 4 gamma-ray logs identified and loop-correlated 14 Miocene sequences. Based on log interpretations, highstand systems tracts are associated with most of these 14 sequences; only 3 (sequences A, C, D) exhibit lowstand and transgressive systems tracts. Topset and foreset deposits on the middle to outer continental shelf are thicker than those on the inner shelf due to pronounced aggradation and progradation. This pattern is attributed to middle to late Miocene deltaic progradation and migration combined with sediment compaction and loading that created the accommodation space for these especially thick shallow-marine deposits. Seismic profiles provide a means of anticipating sedimentary facies based on the vertical and lateral arrangement of reflectors within sequences, even in the absence of geologic samples and wireline log measurements. This study evaluates models of sequence stratigraphic evolution by utilizing high sedimentation rates, gamma-ray logs and seismic profiles available in this area. Sequence A shows the importance of drill site data. Using cores and logs, IODP Exp313 showed the maximum flooding surface is the first major downlap surface within sequence A, implying this interval is dominated by thick highstand deposits. By contrast, the widely cited Exxon model predicts that this and all sequences have thick lowstand units containing multiple flooding surfaces, overlain by comparatively thin highstand deposits. Furthermore, the present study showed not all sequences are alike. Shell-632 gamma-ray data reveals thick lowstand and transgressive strata in sequence D, and thin highstand strata consistent with the Exxon model. In contrast, many other sequences examined here have thin lowstand and transgressive systems tracts either below seismic resolution or absent, and thick highstand systems tracts that agree with the model built on Expedition 313 studies.
Book Synopsis Lower Miocene (ca. 20-18 Ma) New Jersey Sequence Stratigraphy by : Gabriel Gallegos
Download or read book Lower Miocene (ca. 20-18 Ma) New Jersey Sequence Stratigraphy written by Gabriel Gallegos and published by . This book was released on 2017 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a sequence stratigraphic framework, I investigated lower Miocene Kirkwood Formation sequences Kw1a and Kw1b in onshore New Jersey coastal plain coreholes and their relationship to their coeval offshore sequences m5.8 and m5.7, respectively, on the New Jersey continental shelf. I used corehole and gamma log data from Ocean Drilling Program Leg 150X Cape May and Leg 174AX Ocean View sites to evaluate the anatomy of sequences Kw1a and Kw1b by identifying gamma log stacking patterns, lithologic changes/stacking patterns, Sr-isotope data, chronostratigraphic data, bioturbation, indurated zones, and stratal surfaces (i.e., maximum flooding surfaces [MFS], transgressive surfaces [TS], and sequence boundaries). At Cape May, I found that Kw1a is a composite sequence containing three higher order sequences (Kw1a1, Kw1a2, and Kw1a3), similar to its counterpart at Ocean View. Sequence m5.8 at Integrated Ocean Drilling Program Expedition 313 Site M27 was reinterpreted by integrating Oc270 line 529 seismic data with core and gamma log data, and two possible interpretations at Site M27 are presented here: 1) m5.8 is a single ~1 Myr scale sequence or 2) m5.8 is a ~1 Myr scale composite sequence containing at least two ~100-400 ka scale higher order sequences. Loop correlationsSeismic-core-well log integration analysis suggest that at the AMCOR 6011 site, sequence m5.8 (Kw1a) is a composite sequence. I integrated seismic, core, and well log data to test the physical correlation between the offshore and onshore sequences in question. I correlated onshore sequences Kw1a and Kw1b using the gamma logs of coastal plain and nearshore sites Cape May, Ocean View, Cape May Zoo, Sea Isle City, Strathmere, Atlantic City, ACOW 1, ACOW 2, and AMCOR 6011. I integrated onshore, nearshore, and offshore core and gamma log data with R/V Cape Hatteras 0698 (CH0698) and R/V Oceanus 270 (Oc270) multichannel seismic (MCS) profile grids and loop correlated seismic sequence boundaries along the seismic profiles and demonstrated that sequences Kw1a and Kw1b physically correlate to m5.8 and m5.7, respectively.
Book Synopsis Three-Dimensional High-Resolution Seismic Profiling on the New Jersey Outer Continental Shelf by :
Download or read book Three-Dimensional High-Resolution Seismic Profiling on the New Jersey Outer Continental Shelf written by and published by . This book was released on 1993 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous work using the Huntec Deep-Towed Seismic (DTS) system off New Jersey (1987) identified a thick sequence of late Pleistocene sediments on the outer continental shelf. It was suggested (Milliman et al., 1990) that these sediments were deposited by several major melt events during the late Wisconsin glaciation. The physical nature of the sediments, their stratigraphic relation with acoustic stratigraphy and the fine-scale variations of both reflectors and topographic character, however, can be defined only through sediment coring and closely spaced high-resolution profiling. The purpose of this project was to obtain a series of vibrocores to determine the stratigraphic and sedimentologic character of the sediments and to obtain digital data that would allow us to gain a three-dimensional understanding of the shallow structure on the sedimentary sequences in the area.
Book Synopsis Late Pleistocene Geologic History of the Outer Continental Shelf and Upper Continental Slope, Northwest Gulf of Mexico by : Bruce Robert Sidner
Download or read book Late Pleistocene Geologic History of the Outer Continental Shelf and Upper Continental Slope, Northwest Gulf of Mexico written by Bruce Robert Sidner and published by . This book was released on 1977 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Late Pleistocene New Jersey Shelf Sedimentation as a Response to Glacio-eustatic Sea Level Rise by : Stanley B. Stackhouse
Download or read book Late Pleistocene New Jersey Shelf Sedimentation as a Response to Glacio-eustatic Sea Level Rise written by Stanley B. Stackhouse and published by . This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shallowly-buried channel systems have been imaged on the New Jersey Shelf with high-resolution seismic imaging. These channels formed as riverine systems that occupied the exposed shelf during the Last Glacial Maximum, ~18 ka. Subsequent sea level rise ~15-12 ka modified the valleys, forming estuaries and filling the channels with estuarine sediments. The infill sediments within the channel provide evidence for the response of the shelf to the Late Pleistocene glacio-eustatic sea level rise, but little work has been done on samples from these strata. This study aids in the ground-truthing of previous stratigraphic results by analyzing the cores collected within the infill sediments. The seismic stratigraphy of fill sediments from the mid-shelf and outer-shelf channels are structurally dissimilar. The mid-shelf channel fill stratigraphy is dominated by finely-laminated U-shaped reflectors throughout the section, with cut and fill geometries. In contrast, the outer shelf channel fill stratigraphy is a well-ordered sequence of 4 identifiable, primarily flat-lying seismic units. We collected five cores in mid-shelf channels (~30 m water depth), one in an outer shelf channel (~80 m of water depth) and one core in the trangressive ravinement surface. Cores were logged for density and seismic velocity. Grain size analysis was conducted by settling column and laser particle size analyzer. Radiocarbon analysis of the stratigraphy was conducted with the shell fragments and organic mud within the samples. The foraminiferal assemblages aided in determining the depositional environment. Using these data I investigated the differences in depositional environment of the mid- and outer-shelf channels systems, and consider these results in the context of sedimentary models for estuarine processes. The radiocarbon dates and foraminiferal are consistent with channel infill in an estuarine environment. Grain size and density log data indicate that the mid-shelf channel fills are sandier than the outer-shelf channel fills, which leads me to infer that the sediment from the mid-shelf channels was deposited in a higher energy environment than that of the sediment in the outer shelf channels. The stratigraphic differences and locations of the channel systems are similar to the Zaitlin (1994) model of incised valley infill, but infill of the mid-shelf channel system could possibly be the result of a catastrophic meltwater flood event occurring ~14 ka as glacial lakes to the north broke their dams and flooded the mid-shelf.
Book Synopsis Pleistocene Events from the Shallow Structure of the Middle and Outer Continental Shelf of New Jersey by : Jeffrey Dunmire Harris
Download or read book Pleistocene Events from the Shallow Structure of the Middle and Outer Continental Shelf of New Jersey written by Jeffrey Dunmire Harris and published by . This book was released on 1983 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis (Table T4) Final Depth Vs. Velocity and Two-way Traveltime Data, ODP Site 178-1103, Supplementary Data To: Moerz, Tobias; Laronga, R; Lauer-Leredde, C; Escutia, Carlota; Wolf-Welling, Thomas CW (2001): Composite Velocity Profile of Shelf Site 1103 (ODP Leg178, Western Antarctic Peninsula). In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-34 by : Tobias Moerz
Download or read book (Table T4) Final Depth Vs. Velocity and Two-way Traveltime Data, ODP Site 178-1103, Supplementary Data To: Moerz, Tobias; Laronga, R; Lauer-Leredde, C; Escutia, Carlota; Wolf-Welling, Thomas CW (2001): Composite Velocity Profile of Shelf Site 1103 (ODP Leg178, Western Antarctic Peninsula). In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-34 written by Tobias Moerz and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Site 1103 was one of a transect of three sites drilled across the Antarctic Peninsula continental shelf during Leg 178. The aim of drilling on the shelf was to determine the age of the sedimentary sequences and to ground truth previous interpretations of the depositional environment (i.e., topsets and foresets) of progradational seismostratigraphic sequences S1, S2, S3, and S4. The ultimate objective was to obtain a better understanding of the history of glacial advances and retreats in this west Antarctic margin. Drilling the topsets of the progradational wedge (0-247 m below seafloor [mbsf]), which consist of unsorted and unconsolidated materials of seismic Unit S1, was very unfavorable, resulting in very low (2.3%) core recovery. Recovery improved (34%) below 247 mbsf, corresponding to sediments of seismic Unit S3, which have a consolidated matrix. Logs were only obtained from the interval between 75 and 244 mbsf, and inconsistencies on the automatic analog picking of the signals received from the sonic log at the array and at the two other receivers prevented accurate shipboard time-depth conversions. This, in turn, limited the capacity for making seismic stratigraphic interpretations at this site and regionally. This study is an attempt to compile all available data sources, perform quality checks, and introduce nonstandard processing techniques for the logging data obtained to arrive at a reliable and continuous depth vs. velocity profile. We defined 13 data categories using differential traveltime information. Polynomial exclusion techniques with various orders and low-pass filtering reduced the noise of the initial data pool and produced a definite velocity depth profile that is synchronous with the resistivity logging data. A comparison of the velocity profile produced with various other logs of Site 1103 further validates the presented data. All major logging units are expressed within the new velocity data. A depth-migrated section with the new velocity data is presented together with the original time section and initial depth estimates published within the Leg 178 Initial Reports volume. The presented data confirms the location of the shelf unconformity at 222 ms two-way traveltime (TWT), or 243 mbsf, and allows its seismic identification as a strong negative and subsequent positive reflection.
Book Synopsis Antarctic Climate Evolution by : Fabio Florindo
Download or read book Antarctic Climate Evolution written by Fabio Florindo and published by Elsevier. This book was released on 2008-10-10 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antarctic Climate Evolution is the first book dedicated to furthering knowledge on the evolution of the world’s largest ice sheet over its ~34 million year history. This volume provides the latest information on subjects ranging from terrestrial and marine geology to sedimentology and glacier geophysics. An overview of Antarctic climate change, analyzing historical, present-day and future developments Contributions from leading experts and scholars from around the world Informs and updates climate change scientists and experts in related areas of study
Book Synopsis Tectonics and Structural Geology: Indian Context by : Soumyajit Mukherjee
Download or read book Tectonics and Structural Geology: Indian Context written by Soumyajit Mukherjee and published by Springer. This book was released on 2018-10-30 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a compilation of findings, review and original works, on the tectonic evolution and structural detail of several terrains in India. It captures the tectonic diversity of the Indian terrain, including tectonics of India's coastal areas, the tectonic evolution of Gondwana and Proterozoic (Purana) basins. It also describes the research results of the Indian craton's geo-history, Tertiary Bengal basin, and also the Himalayan collisional zone. Thus the book covers the deformation history of Indian terrain involving strike slip, compressional and extensional tectonics, and ductile and brittle shear deformations.
Book Synopsis Studies on Glaciers by : Louis Agassiz
Download or read book Studies on Glaciers written by Louis Agassiz and published by . This book was released on 1967 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Afar Volcanic Province Within the East African Rift System by : G. Yirgu
Download or read book The Afar Volcanic Province Within the East African Rift System written by G. Yirgu and published by Geological Society of London. This book was released on 2006 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The seismically and volcanically active East African Rift System is an ideal laboratory for continental break-up processes: it encompasses all stages of rift development. Its northernmost sectors within the Afar volcanic province include failed rifts, nascent sea-floor spreading, and youthful passive continental margins associated with one or more mantle plumes. A number of models have been proposed to explain the success and failure of continental rift zones, but there remains no consensus on how strain localizes to achieve rupture of initially 125-250 km-thick plates, or on the interaction between the plates and asthenospheric processes. This collection of papers provides new structural, stratigraphic, geochemical and geophysical data and numerical models needed to resolve fundamental questions concerning continental break-up and mantle plume processes. The focus is on how mantle melt intrudes and is distributed through the plate, and how this magma intrusion process controls along-axis segmentation and facilitates break-up.
Book Synopsis Seawater Intrusion in Coastal Aquifers by : Jacob Bear
Download or read book Seawater Intrusion in Coastal Aquifers written by Jacob Bear and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.
Book Synopsis Carbonate Sequence Stratigraphy by : Robert G. Loucks
Download or read book Carbonate Sequence Stratigraphy written by Robert G. Loucks and published by AAPG. This book was released on 1983-04-15 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardcover plus Foldouts
Book Synopsis Quantitative Seismic Interpretation by : Per Avseth
Download or read book Quantitative Seismic Interpretation written by Per Avseth and published by Cambridge University Press. This book was released on 2010-06-10 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative Seismic Interpretation demonstrates how rock physics can be applied to predict reservoir parameters, such as lithologies and pore fluids, from seismically derived attributes. The authors provide an integrated methodology and practical tools for quantitative interpretation, uncertainty assessment, and characterization of subsurface reservoirs using well-log and seismic data. They illustrate the advantages of these new methodologies, while providing advice about limitations of the methods and traditional pitfalls. This book is aimed at graduate students, academics and industry professionals working in the areas of petroleum geoscience and exploration seismology. It will also interest environmental geophysicists seeking a quantitative subsurface characterization from shallow seismic data. The book includes problem sets and a case-study, for which seismic and well-log data, and MATLAB® codes are provided on a website (http://www.cambridge.org/9780521151351). These resources will allow readers to gain a hands-on understanding of the methodologies.
