Download or read book Chemostratigraphic and Lithostratigraphic Characterization of Middle to Upper Miocene Monterey Formation equivalent Strata of Long Beach Oil Field written by Ayodeji Israel Aina (Graduate student) and published by . This book was released on 2021 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because the study area is located immediately adjacent to the Newport-Inglewood Fault Zone (NIFZ), unique local syntectonic depositional bathymetries and environments may have developed during initial rifting that would have evolved through time. This tectonic and bathymetric history could account for local differences in bottom-water environment, and the resulting sediment composition, rock properties, and petroleum potential.

Download or read book Chemostratigraphy of the Miocene Monterey Formation in the San Joaquin Basin California written by Alexander Sedlak (Graduate student) and published by . This book was released on 2020 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: While previous studies have examined the trace metal content of the Monterey, lateral stratigraphic and paleobathymetric correlation has not been explored using trace elemental analysis. Although a parallel study of core samples from one of the wells examined herein documented compositional and environmental variability across a limited stratigraphic interval near the Antelope/McDonald member boundary, our results extend that to span most of the middle to upper Miocene Monterey Formation stratigraphic succession and expand paleoenvironmental interpretation in time and in space, both laterally and paleobathymetrically.

Download or read book Chemostratigraphy of Hemipelagic Facies of the Montery Formation and Equivalent Sedimentary Rocks Los Angeles Basin California written by Rebecca K. Lanners and published by . This book was released on 2013 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The submarine-fan-dominated, proximal Los Angeles basin contains interstratified hemipelagic strata coeval with the widespread Miocene Monterey Formation that accumulated in other California margin basins. Although more detrital-rich and containing greater abundance of plagioclase and muscovite than more distal, outboard basins, a four-part compositional zonation is recognized in the fine-grained facies, similar to the stratigraphic succession of the Santa Barbara coastal area. In ascending stratigraphic order, these include a basal interbedded calcareous-siliceous zone, a phosphatic zone, a calcareous-siliceous zone, and an uppermost siliceous zone. To establish these zonations, 125 samples from five wells in a north-south transect across the western basin from East and West Beverly Hills, Inglewood, and Wilmington oil fields were analyzed for bulk chemical composition by XRF and quantitative mineralogy by XRD and FTIR. The mineralogic composition of the fine-grained detrital fraction makes use of geochemical equations for sedimentary components developed elsewhere unsuitable to the Los Angeles basin.

Download or read book Understanding the Monterey Formation and Similar Biosiliceous Units across Space and Time written by Ivano W. Aiello and published by Geological Society of America. This book was released on 2022-09-27 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Monterey Formation written by Caroline M. Isaacs and published by Columbia University Press. This book was released on 2001 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an extraordinary case study of a classic marine petroleum system in the prolific oil basins of California. Based on results from the Cooperative Monterey Organic Chemistry Study, the volume examines paleoenvironmental conditions, organic-matter deposition, source-rock characteristics, thermal maturation, and oil generation in the Monterey Formation.

Download or read book Chemostratigraphic and Lithostratigraphic Framework of the Eocene Kreyenhagen Formation written by Leo G. Giannetta and published by . This book was released on 2019 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The Eocene Kreyenhagen Formation is a widespread siliceous, organic-rich mudstone of the San Joaquin Basin. In comparison to the highly studied siliceous Monterey Formation, studies of the Kreyenhagen are limited. This study completes a stratigraphic characterization of the Kreyenhagen at the Kettleman area with emphasis on chemostratigraphy to understand its compositional variability and depositional history.

Download or read book Stratigraphy Diagenesis and Structural Deformation of the Monterey Formation Central California Coast written by Richard J. Behl and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This field trip guidebook uses the Miocene Monterey Formation as a natural laboratory to understand the origin, distribution and physical properties of biogenic, siliceous and organic-rich mudrocks deposited from clastic-starved, upwelling systems above marginal marine basins. Based on a successful week-long, professional short-course led for many years by the authors, the guidebook teaches how to distinguish types of siliceous, calcareous/dolomitic, phosphatic and organic-rich rocks and to understand relationships between depositional environment, sediment and rock composition, diagenetic evolution, and bedding style or stacking patterns. Knowledge of the chemical and mineralogic character and the physical properties of these rocks is then applied to understand variations in mechanical stratigraphy and fracture architecture that can enhance prediction of petroleum reservoir properties.The field guide takes the user to spectacular, classic outcrops of different facies of the Miocene Monterey Formation exposed along the coast of southern and central California. The great heterogeneity of the Monterey Formation permits investigation of siliceous, calcareous, phosphatic and carbonaceous mudrocks and their different properties and deformational behavior that can be applied to other mudstones around the world. Their occurrence within a complex and varied tectonically active setting provides exposures that presenting different aspects, perspectives and styles of deformation from extension to compression to strike-slip faulting, with bedding-scale to formational-scale expressions.

Download or read book Petroleum System Evolution Strike slip Tectonism and Diagenesis of the Monterey Formation in the Salinas Basin California written by Tess Menotti and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late nineteenth century, central and southern California Neogene basins have been recognized as prolific petroleum producers. One of these, the Salinas Basin, features at least seven oil fields containing over half a billion barrels of recoverable oil. The mostly uplifted western side of the basin has invited decades of geologic research relating to tectonic evolution of the western California margin, whereas economic interests have focused study mainly on the subsurface features in the east. Though we possess a basic knowledge of the relations between the geology and existence of petroleum in Salinas Basin, we can achieve a more complete understanding by integrating the geological nuances characterizing basin history with petroleum system analysis. The most notable of these traits include strike-slip tectonism and diagenesis of the Miocene Monterey Formation. Late Neogene tectonism associated with the San Andreas Fault led to profound changes to the entire western margin of North America. In the Salinas Basin, this is manifested as numerous, dextral strike-slip and oblique slip faults, one of which includes the Reliz-Rinconada Fault (RRF), which bisects the main depocenter. Transpressional tectonism induced shortening, taken up by broad and small-scale folds and thrust faults. The related partial basin inversion resulted in considerable erosion, including Oligocene and Miocene age strata. In addition to the dynamic tectonism, mechanical and thermal properties of a key stratigraphic formation, the Monterey Formation, evolved with burial and diagenesis of biogenic silica. From diagenetic alteration to tectonic thickening of overburden, to kilometer-scale transport of a pod of active source rock (POASR), all of these processes are intertwined with synchronous petroleum system events. Past research in basin evolution has done little to combine complex tectonism and diagenesis with petroleum systems analysis. Basin and petroleum system modeling (BPSM) is an effective approach to linking these geologic processes and integrating them into a common framework. The Salinas Basin is an excellent area to test and develop BPSM techniques that address the geological complexities often oversimplified or overlooked in standard workflows. This thesis is divided into three chapters addressing the following overarching research objectives: (1) to address the coupling between tectonism and petroleum system formation. (2) To incorporate silica diagenesis to improve geohistory modeling. (3) To reevaluate the Salinas Basin petroleum system(s) in an effort to help explain the oil field size distribution. (4) To integrate historic geologic and petroleum system data and concepts into a digital basin-scale framework. Chapter 1 explores the interplay between silica diagenesis and basin and petroleum system analysis. X-ray diffraction (XRD) analysis of porcelaneous outcrop samples determined that most surface exposures of the Hames Mbr of the Monterey Fm are opal-CT phase silica, with few opal-A phase diatomite occurrences rimming basin margins in the central and southern parts of the basin. X-ray fluorescence (XRF) analysis of the same samples reveal that relative clay abundances for sampled outcrops near the Arroyo Seco Trough (AST) and Hames Valley Trough (HVT) POASRs average 26 wt %. Detailed analysis of samples from a continuous section of Hames Mbr strata in Reliz Canyon (adjacent to the AST) reveals a systematic increase in stability of opal-CT silica with stratigraphic depth. The classic nomograph of Keller and Isaacs (1985) relating diagenetic silica crystallography and clay content to temperature suggests that maximum burial temperatures seen by this section range from 56.4-77.5 °C at 30% clay. One-dimensional (1D) and two-dimensional (2D) burial history models incorporate a dynamic lithology for the Hames Mbr, capable of adjusting properties upon reaching designated temperature thresholds. Observed silica phases coupled with other forms of burial and thermal calibration (porosity, temperature, Tmax, vitrinite reflectance) guide erosion estimates. 1D models of the Reliz Canyon outcrop indicate a broader maximum temperature range and steeper gradient than indicated from crystallographic evidence, suggesting structural tilting of strata prior to uplift. Based on systematic erosion and structural thickening scenario testing of nine wells in the AST and HVT, and corroboration of their burial history using silica phase among other calibration sources, the magnitude of Pliocene-Recent erosion in the AST area increases to the northwest, and ranges from 700-1400 m. 1D and 2D basin models indicate that the eastern part of the basin experienced considerably less erosion (typically 0-80 m) than in the west. Collectively, these models show that locally and at basin scale, erosion magnitude generally increases from south to north, and from east to west across the RRF. The spatial variability in burial and uplift history resulted in diachronous source rock maturation in HVT versus AST: source rock reached 50% transformation ratio (TR; type II kinetics) by late Miocene time in the HVT, whereas AST source rock was approaching 40% TR at present-day. Elements of this chapter will be incorporated into publication of Chapter 3. Co-authors will include Dr. Stephan Graham, and those co-authors mentioned for Chapter 3. My contributions to this work include project design, sample collection, laboratory analysis, results interpretation, collection of data required as modeling parameters and boundary conditions, all model construction and interpretation. Dr. Graham helped with initial project design and overall interpretations. Chapter 2 presents a new BPSM method that incorporates strike-slip fault motion in 3D basin models. No published literature documents the incorporation of strike-slip faulting into basin and petroleum system modeling prior to this work, despite the abundance of petroliferous basins influenced by strike-slip faulting. 3D synthetic models of a simplified version of Salinas Basin demonstrate the feasibility and value of including strike-slip motion in petroleum system analysis. Model results exemplify potential implications for inclusion of strike-slip fault motion in basin models, such as formation of alternative migration pathways through time and mixing of petroleum from multiple sources in the same accumulation. This chapter was submitted to Marine and Petroleum Geology in spring, 2014, and is in review at this time. Co-authors include Dr. Oliver Schenk, Dr. Carolyn Lampe, Dr. Thomas Fuchs and Dr. Stephan A. Graham. My role in this research was in project design, general workflow development, all model construction and testing, and in interpretation of model results. Dr. Schenk and Dr. Lampe provided critical guidance in developing specific aspects of the modeling approach, and provided clarification on technical details. Dr. Fuchs clarified technical details related to the modeling simulator. Dr. Graham helped with initial project design. Chapter 3 investigates the interplay of strike-slip tectonism, basin history and petroleum system development. 3D modeling of basin and petroleum system evolution predicts up to 75 % transformation in the lower Monterey Formation in the main POASR (HVT) and up to 35 % transformation in the western POASR (AST) at present-day. Models predict the largest petroleum accumulations directly northeast of the HVT pod of active source rock, consistent with the location and size of the San Ardo oil field. Very little oil and gas migrated from west to east across the RRF; the little petroleum that is transmitted across the fault accumulated in reservoir layers and fine-grained layers in the northeastern area of the basin. Petroleum generation began (10% TR) at ~11 Ma in the HVT POASR, and accumulation in sandstone reservoirs began ~5 Ma. Accumulation history of the San Ardo area in detail indicates sequential filling of near-source traps in reservoir layers first, followed by accumulation of neighboring traps updip in the last million years. Interpretations of seismic reflection data of the HVT suggest four main tectonic stages. These stages include: (I) Oligocene-early Miocene time is characterized by a transtensional regional stress regime associated with passage of the Mendocino Triple Junction. Evidence for this includes normal faults that progressively down-step basement to the west and north, initiating basin subsidence. (II) Early-middle Miocene rapid subsidence occurred through displacement on high-angle basement normal faults. I suggest this period of subsidence is driven by local transtensional deformation due to a right step-over between subparallel strike-slip faults, resulting in formation of a pull-apart basin. (III) Middle Miocene-early Pliocene time is characterized by a shift in deformational styles, marked by contractile features including low-angle detachment faults within the Monterey Fm, and modest uplift of basin fill in response to this shortening. (IV) Pliocene-Recent shortening associated with the Coast Range Orogeny is evident in the three or more NE-SW striking thrust faults uplifting strata in the west and north. Review of petroleum system models in the context of these seismic interpretations suggests a number of feedbacks between tectonics and petroleum-related events. Biomarker concentrations in sampled oils including C29 sterane and C31 terpane isomers and Ts/Tm ratios indicate relatively low levels of thermal maturity for all oil field samples. An oil produced from much greater depths (~2500 m TVD) appears considerably more mature and less biodegraded than all other samples. Additionally, C27-C29 steranes and monoaromatic steroids suggest a single anoxic marine source with probable subtle variability in organofacies. An abbreviated version of this chapter is planned for future publication with co-authors Dr. J.M ...

Download or read book Petroleum Generation and Occurrence in the Miocene Monterey Formation California written by Caroline M. Isaacs and published by . This book was released on 1983 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geochemistry of Minor Elements in the Monterey Formation California written by David Z. Piper and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lithostratigraphic Signal Evaluation of the Miocene Monterey Formation South Elwood Field Santa Barbara Ventura Basin California written by Nathaniel Ross Miller and published by . This book was released on 1995 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lateral Variation of Fine grained Organic rich Sediments of the Miocene Monterey Formation Belridge Field Area California written by John C. Farrell (Graduate student) and published by . This book was released on 2020 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Paleobathymetric position, rates of primary production and detrital input play an important role in determining the sedimentologic character of the highly heterogeneous Miocene Monterey Formation. Although many studies have documented the vertical succession of compositionally distinct lithostratigraphic members, only a few have investigated lateral variability within fine-grained facies. Here, we present a detailed examination of core and modern well logs over an interval within the McDonald and Antelope members of the Monterey Formation to understand the sedimentological relationships and lateral variation of organic matter, biogenic-silica and detritus in the Belridge oil field area of the San Joaquin Basin. This work characterizes significant lateral variation well within the length of a standard horizontal well (5,000’ to 10,000’ ft). A better understanding of thickness and compositional lateral variation in fine-grained systems has practical applications ranging from field exploration and reserve estimates to operational optimization in geosteering, drilling and completions.

Download or read book Miocene Extension and Post Miocene Transpression Offshore of South central California written by Christopher C. Sorlien and published by . This book was released on 1999 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Detailed Lithostratigraphic Characterization of Chico Martinez Creek California written by Annie Mosher and published by . This book was released on 2013 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A 6012-foot Monterey Formation succession at Chico Martinez Creek, San Joaquin basin, is characterized at high spatial resolution by spectral gamma-ray data in 2-foot increments, 5-foot lithologic descriptions, and qualitative XRD and FTIR analysis. Based on these data, the 4 Monterey members-the Gould, Devilwater, McDonald and Antelope shales-are subdivided into 7 distinctive lithofacies. New paleomagnetic data, combined with industry-provided biostratigraphy establishes a chronostratigraphic framework and allows determination of linear sediment accumulation rates. Condensed sedimentation at the onset of McDonald deposition (1̃4 Ma) is also observed in correlative members in the Pismo, Santa Maria and Santa Barbara basins. This regional event is associated with eustatic regression from the Mid-Miocene highstand related to formation of the East Antarctic Ice Sheet and ongoing thermotectonic basin subsidence. A surge in linear sediment accumulation rates in the siliceous upper McDonald and Antelope (1̃0.4 Ma) is attributed to a regional increase in diatom productivity.

Download or read book Structure and Stratigraphy of the Monterey Formation and Adjacent Rocks Central California written by Steven B. Bachman and published by . This book was released on 1984 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Siliceous Microfossil and Microplankton of the Monterey Formation and Modern Analogs written by Society of Economic Paleontologists and Mineralogists. Pacific Section. Convention and published by . This book was released on 1986 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oligocene Miocene Sedimentary and Volcanic Strata of the Vincent Gap Region Eastern San Gabriel Mountains Southern California USA and Their Tectonic Significance written by Kevin Thomas Coffey and published by . This book was released on 2015 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Vincent Gap region of the eastern San Gabriel Mountains in southern California is a small but important piece of an originally continuous terrane separated into the Tejon, Soledad and Orocopia regions by the San Andreas fault system. The middle-upper Miocene Punchbowl Formation has been considered the oldest Neogene strata of the Vincent Gap region. The present study documents that strata southeast of the main exposure of the Punchbowl Formation, though aerially restricted, are temporally extensive; together with the Punchbowl Formation, they comprise a sedimentary record that spans from ~25 to ~6 Ma, includes equivalents of the Vasquez, Tick Canyon and Mint Canyon formations of the Soledad region, and relates to three sequential tectonic stages in southern California. Uppermost Oligocene-lower Miocene strata are closely correlative with the Plush Ranch, Vasquez and Diligencia formations of the Tejon, Soledad and Orocopia regions, respectively; they formed during extension induced by triple-junction instability. Interbedded 25 Ma volcanics near the base of these strata are chemically and chronologically similar to those of the Plush Ranch, Vasquez and Diligencia formations. Middle Miocene strata beneath the Punchbowl Formation are equivalent to the Tick Canyon Formation of the Soledad region, and document exhumation of the Pelona Schist. Sandstone petrofacies, conglomerate composition and detrital-zircon age data provide compatible but distinct provenance information; using all three in combination results in a more complete understanding of the provenance of each of these units. The results of this study imply that transrotation of the western Transverse Ranges and accompanying basement exhumation extended farther inboard than generally thought, adjacent to if not across the future trace of the San Andreas fault. Data from the Vincent Gap also reveal that the middle-upper Miocene Punchbowl Formation was likely part of a large drainage system, with the Mint Canyon Formation of the Soledad region representing a tributary of this system that joined downstream, and the Caliente Formation of the Tejon region representing the confluence of the two.