The Central Basin Spreading Center in the Philippine Sea
... Sea, extending from 5! to 23!N and is the largest and deepest inactive basin on the Philippine Sea Plate. The average depth of the basin ranges from 5500 to 6000 m, deeper than that expected from the standard age-depth curve but in accord with the curve derived for back arc basins [Sclater, 1972; Pa ...
... Sea, extending from 5! to 23!N and is the largest and deepest inactive basin on the Philippine Sea Plate. The average depth of the basin ranges from 5500 to 6000 m, deeper than that expected from the standard age-depth curve but in accord with the curve derived for back arc basins [Sclater, 1972; Pa ...
The Central Basin Spreading Center in the Philippine Sea: Structure
... Sea, extending from 5° to 23°N and is the largest and deepest inactive basin on the Philippine Sea Plate. The average depth of the basin ranges from 5500 to 6000 m, deeper than that expected from the standard age-depth curve but in accord with the curve derived for back arc basins [Sclater, 1972; Pa ...
... Sea, extending from 5° to 23°N and is the largest and deepest inactive basin on the Philippine Sea Plate. The average depth of the basin ranges from 5500 to 6000 m, deeper than that expected from the standard age-depth curve but in accord with the curve derived for back arc basins [Sclater, 1972; Pa ...
Tectonic Evolution and Dynamics of Deepwater Area of Pearl River
... stages to a high degree, so the tectonic subsidence rate and average tectonic subsidence rate are calculated. Two rapid subsidence periods, 32–23 and 5.3–2.6 Ma respectively, are identified (Fig. 6). Rapid subsidence period during 32–23 Ma The slope of tectonic subsidence curve is the subsidence rat ...
... stages to a high degree, so the tectonic subsidence rate and average tectonic subsidence rate are calculated. Two rapid subsidence periods, 32–23 and 5.3–2.6 Ma respectively, are identified (Fig. 6). Rapid subsidence period during 32–23 Ma The slope of tectonic subsidence curve is the subsidence rat ...
Pangaea to Plate Tectonics Report
... and all at once so that the reader can appreciate them as a whole and in relationship to how The Urantia Book integrates these statements into its broader presentation of the history of our planet. (The Urantia Book uses the word “Urantia” as the name of our planet.) Additionally, reading through th ...
... and all at once so that the reader can appreciate them as a whole and in relationship to how The Urantia Book integrates these statements into its broader presentation of the history of our planet. (The Urantia Book uses the word “Urantia” as the name of our planet.) Additionally, reading through th ...
Have the ancient cities of Sodom and Gomorrah been
... below sea level about 24,000 to 25,000 years ago and formed a lake completely filling the Jordan Valley. Former wave-cut beaches can be found at this level. At this time, this high stand was 200 meters above the current level of the Dead Sea, which is 427 meters (1,401 feet) below sea level − the lo ...
... below sea level about 24,000 to 25,000 years ago and formed a lake completely filling the Jordan Valley. Former wave-cut beaches can be found at this level. At this time, this high stand was 200 meters above the current level of the Dead Sea, which is 427 meters (1,401 feet) below sea level − the lo ...
ft - Colorado Geological Survey
... ways as regards water supply. In the first plncc, they generally, though not everywhere, stand at liigher altitudes and hence receive a greater precipitation. Their water supply is not only greater but also more continuous, because much of the winter precipitation occurs as snow and hence runs off w ...
... ways as regards water supply. In the first plncc, they generally, though not everywhere, stand at liigher altitudes and hence receive a greater precipitation. Their water supply is not only greater but also more continuous, because much of the winter precipitation occurs as snow and hence runs off w ...
On the tectonic origin of Iberian topography - E
... namely the longitudinal pro file of the main rivers in the Iberian peninsula and the distribution of present-day endorheic areas, are consistent with the Tertiary tectonic evolution and the change from an endorheic to an exorheic regime during the Late Neogene and the Quaternary. Some of the problem ...
... namely the longitudinal pro file of the main rivers in the Iberian peninsula and the distribution of present-day endorheic areas, are consistent with the Tertiary tectonic evolution and the change from an endorheic to an exorheic regime during the Late Neogene and the Quaternary. Some of the problem ...
Basement-involved tectonics in North Fossa Magna, central Japan: The
... 2002a; Okamura, 2003). Utilizing all these data, a compar2. Method and Data ative method should be attempted according to the aboveMapping of the surface geology of the North Fossa mentioned structural continuance of geomorphology and Magna had already been done by the 1990s, and all fun- stratigrap ...
... 2002a; Okamura, 2003). Utilizing all these data, a compar2. Method and Data ative method should be attempted according to the aboveMapping of the surface geology of the North Fossa mentioned structural continuance of geomorphology and Magna had already been done by the 1990s, and all fun- stratigrap ...
Tectonically restricted deep-ocean circulation at the end of the
... sites of this study (Voigt et al., 2012) (Fig. 2). The analyzed samples cover the interval between chrons C32n and C31n (262.32–316.57 mbsf, core sections: 17-1/52-53 to 22-5/47-49). ODP Hole 762C was drilled in the western part of the central Exmouth Plateau located in the late Cretaceous in the pr ...
... sites of this study (Voigt et al., 2012) (Fig. 2). The analyzed samples cover the interval between chrons C32n and C31n (262.32–316.57 mbsf, core sections: 17-1/52-53 to 22-5/47-49). ODP Hole 762C was drilled in the western part of the central Exmouth Plateau located in the late Cretaceous in the pr ...
54. mesozoic-tertiary tectonic evolution of the easternmost
... is defined as that part of the Eastern Mediterranean Sea located east of the Aegean (east of 28°E longitude). At present, no one paleogeography is agreed upon by various workers (Figs. 2A−D, 3A–D). It is generally agreed that from Late Cretaceous to Holocene, the Eastern Mediterranean has been in a ...
... is defined as that part of the Eastern Mediterranean Sea located east of the Aegean (east of 28°E longitude). At present, no one paleogeography is agreed upon by various workers (Figs. 2A−D, 3A–D). It is generally agreed that from Late Cretaceous to Holocene, the Eastern Mediterranean has been in a ...
DOC - Offshore Petroleum Exploration Acreage Release
... (Enovation Petroleum and Cathay Petroleum), the central Ceduna Sub-basin (BP Exploration [BP] with Statoil), and the eastern Ceduna–Duntroon sub-basins (Bight Petroleum). New seismic data has been acquired in the basin, including a deep regional seismic survey (BightSpan by ION Geophysical) and a re ...
... (Enovation Petroleum and Cathay Petroleum), the central Ceduna Sub-basin (BP Exploration [BP] with Statoil), and the eastern Ceduna–Duntroon sub-basins (Bight Petroleum). New seismic data has been acquired in the basin, including a deep regional seismic survey (BightSpan by ION Geophysical) and a re ...
Author`s personal copy
... left-hand corner CMT (1977–2003) focal solutions from the area (after Pondrelli et al., 2004) are also shown. Hypocentral depth: b50 km; Magnitudo N 4. Blue: focal mechanisms with compressional regime; green: focal mechanisms with strike-slip regime; red: focal mechanisms with extensional regime. ...
... left-hand corner CMT (1977–2003) focal solutions from the area (after Pondrelli et al., 2004) are also shown. Hypocentral depth: b50 km; Magnitudo N 4. Blue: focal mechanisms with compressional regime; green: focal mechanisms with strike-slip regime; red: focal mechanisms with extensional regime. ...
Cenozoic Stratigraphy and Tectonic Evolution of the Raft River
... and Lipman, 1972). During the Quaternary, extensional tectonics probably continued, and flood basalts of the Snake River Group were erupted from centers at the north end of the Raft River Valley. Alluvial deposits of main and tributary streams, alluvial fan gravels on Piedmont slopes, and successive ...
... and Lipman, 1972). During the Quaternary, extensional tectonics probably continued, and flood basalts of the Snake River Group were erupted from centers at the north end of the Raft River Valley. Alluvial deposits of main and tributary streams, alluvial fan gravels on Piedmont slopes, and successive ...
Deep submergence potential science
... further sampling of the deep biosphere with the view toward understanding such problems as how the huge biomass survives in an environment of apparently meager resources. The biochemistry, microbial physiology, and microbial ecology of this population is largely unknown. Clearly, organic and inorgan ...
... further sampling of the deep biosphere with the view toward understanding such problems as how the huge biomass survives in an environment of apparently meager resources. The biochemistry, microbial physiology, and microbial ecology of this population is largely unknown. Clearly, organic and inorgan ...
Chapter 10—Early Paleozoic Events
... KEY TERMS (pages given in parentheses) Absaroka Sequence (283): A sequence of Permian-Pennsylvanian sediments bounded both above and below by a regional unconformity and providing a record an episode of marine transgression over an eroded surface, full flood level of inundation, and regression from ...
... KEY TERMS (pages given in parentheses) Absaroka Sequence (283): A sequence of Permian-Pennsylvanian sediments bounded both above and below by a regional unconformity and providing a record an episode of marine transgression over an eroded surface, full flood level of inundation, and regression from ...
Chukchi arctic continental margins: tectonic evolution, link to the
... continental nature of the Lomonosov Ridge crust and an oceanic nature of the Canada Basin crust are more or less proven. However, seismic data available for the crust of the Alpha Ridge and the Mendeleev Uplift cannot currently be unambiguously interpreted based on available evidence. In this contex ...
... continental nature of the Lomonosov Ridge crust and an oceanic nature of the Canada Basin crust are more or less proven. However, seismic data available for the crust of the Alpha Ridge and the Mendeleev Uplift cannot currently be unambiguously interpreted based on available evidence. In this contex ...
Characteristics of crustal magnetic structures in the Tsushima (Ulleung) and
... models constructed from the amplitudes of analytic signal calculated from vector anomalies and the crustal structures determined by seismic studies are similar to those of typical extrusive basalt in both basins. The observed anomalies in the Japan Basin contain a short wavelength anomaly which cann ...
... models constructed from the amplitudes of analytic signal calculated from vector anomalies and the crustal structures determined by seismic studies are similar to those of typical extrusive basalt in both basins. The observed anomalies in the Japan Basin contain a short wavelength anomaly which cann ...
witts_etal_2011 Barito Basin Kalimantan_IPA
... The Barito Basin is located in southeast Kalimantan, Borneo. The basin contains a thick succession of sedimentary rocks that are well exposed along the eastern margin of the basin (Fig. 1). The basin is bound to the west by the Schwaner Complex, comprising poorly dated regionally and contact metamor ...
... The Barito Basin is located in southeast Kalimantan, Borneo. The basin contains a thick succession of sedimentary rocks that are well exposed along the eastern margin of the basin (Fig. 1). The basin is bound to the west by the Schwaner Complex, comprising poorly dated regionally and contact metamor ...
The Rio Grande rift, Part I: Modifications and additions
... Synthesis of the above observations suggests the following model (see figs. 3 and 4) : (1) the continental plate west of the rift is drifting faster than the continental interior (mantle convection may be pulling it over the East Pacific Rise in a "conveyor belt" manner similar to that suggested by ...
... Synthesis of the above observations suggests the following model (see figs. 3 and 4) : (1) the continental plate west of the rift is drifting faster than the continental interior (mantle convection may be pulling it over the East Pacific Rise in a "conveyor belt" manner similar to that suggested by ...
Investigating tectonic-erosion interactions
... Central Iran provides an ideal test site to study the morphotectonic response to initiation and propagation of intraplate faulting. A multidisciplinary approach that integrates structural and stratigraphic field investigations with geochronological (OSL) and thermochronological (U-Th)/He apatite, AH ...
... Central Iran provides an ideal test site to study the morphotectonic response to initiation and propagation of intraplate faulting. A multidisciplinary approach that integrates structural and stratigraphic field investigations with geochronological (OSL) and thermochronological (U-Th)/He apatite, AH ...
guidebook san luis basin, colorado
... Synthesis of the above observations suggests the following model (see figs. 3 and 4 ) : (1) the continental plate west of the rift is drifting faster than the continental interior (mantle convection may be pulling it over the East Pacific Rise in a "conveyor belt" manner similar to that suggested by ...
... Synthesis of the above observations suggests the following model (see figs. 3 and 4 ) : (1) the continental plate west of the rift is drifting faster than the continental interior (mantle convection may be pulling it over the East Pacific Rise in a "conveyor belt" manner similar to that suggested by ...
- International Pavilion
... 3.2: Bounded by high angle dip-slip and oblique-slip fault systems forming an asymetrical basin that deepens on the D.R.C. side. 3.3: Fault plane dip 60-80Deg. 3.4: Depths to pre-rift basement are estimated to reach 6000m. 3.5: Structural style characterized by extensional rifting but seismic sugges ...
... 3.2: Bounded by high angle dip-slip and oblique-slip fault systems forming an asymetrical basin that deepens on the D.R.C. side. 3.3: Fault plane dip 60-80Deg. 3.4: Depths to pre-rift basement are estimated to reach 6000m. 3.5: Structural style characterized by extensional rifting but seismic sugges ...
The West Philippine Basin: An Eocene to early Oligocene back arc
... zones. Rifting started around 55 Ma and spreading ended at 33/30 Ma. The initial spreading axis was parallel to the paleo-Philippine Arc but became inactive when a new spreading ridge propagated from the eastern part of the basin, reaching the former one at an R-R-R triple junction. Spreading occurr ...
... zones. Rifting started around 55 Ma and spreading ended at 33/30 Ma. The initial spreading axis was parallel to the paleo-Philippine Arc but became inactive when a new spreading ridge propagated from the eastern part of the basin, reaching the former one at an R-R-R triple junction. Spreading occurr ...
The Cauvery Basin extending Extends along the East Coast of India
... Cretaceous fan model (New discovery in CY-OS-2) promising for future exploration. Discovery by RIL (Dhirubhai-35) has opened a new corridor for exploration in Cauvery deep water Big size subtle features seen on GXT-DGH long offset lines at deeper levels ...
... Cretaceous fan model (New discovery in CY-OS-2) promising for future exploration. Discovery by RIL (Dhirubhai-35) has opened a new corridor for exploration in Cauvery deep water Big size subtle features seen on GXT-DGH long offset lines at deeper levels ...
Messinian salinity crisis
The Messinian Salinity Crisis (MSC), also referred to as the Messinian Event, and in its latest stage as the Lago Mare event, was a geological event during which the Mediterranean Sea went into a cycle of partly or nearly complete desiccation throughout the latter part of the Messinian age of the Miocene epoch, from 5.96 to 5.33 Ma (million years ago). It ended with the Zanclean flood, when the Atlantic reclaimed the basin.Sediment samples from below the deep seafloor of the Mediterranean Sea, which include evaporite minerals, soils, and fossil plants, show that, about 5.96 million years ago in the late Miocene period, the precursor of the Strait of Gibraltar closed tight and the Mediterranean Sea, for the first time and then repeatedly, partially desiccated. The strait closed 5.6 Ma for the last time and, because of the generally dry climate conditions, within a millennium the Mediterranean basin nearly completely dried out, evaporating into a deep dry basin bottoming at some places 3 to 5 km (1.9 to 3.1 mi) below the world ocean level, with a few hypersaline Dead Sea-like pockets. Around 5.5 Ma, less dry climatic conditions allowed the basin to resume receiving more fresh water from rivers, with pockets of Caspian-like brackish waters getting progressively less hyper-saline, until the Strait of Gibraltar finally reopened 5.33 Ma with the Zanclean flood.Even now the Mediterranean is saltier than the North Atlantic because of its near isolation by the Strait of Gibraltar and its high rate of evaporation. If the Strait of Gibraltar closes again, which is likely to happen in the near geological future (though extremely distantly on a human time scale), the Mediterranean would mostly evaporate in about a thousand years. After that, continued northward movement of Africa may obliterate the Mediterranean: see Mediterranean Ridge.