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SEAS-OI Station

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Series: GSA Special Papers
Published: 01 April 2009
DOI: 10.1130/2009.2452(11)
... that a small (~25 m) sea-level lowering was associated with the precursor EOT-1 increase, suggesting that the δ 18 O increase primarily reflected 1–2 °C of cooling. Global sea level dropped by 80 ± 25 m at Oi-1 time, implying that the deep-sea foraminiferal δ 18 O increase was due to the growth of a continent...
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP426.20
EISBN: 9781862399587
... on RADARSAT-2 data provided by the SEAS-OI station. RADARSAT-2 is a fully-polarimetric C-band (5.6 cm wavelength) Canadian satellite launched in 2007, with a revisit period of 24 days. However, in academic research, most InSAR ground displacement measurements are based on data from other sensors, such as ERS1...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2017
AAPG Bulletin (2017) 101 (3): 387-418.
...-window level of thermal maturation, solid-bitumen reflectance instead of R o can be measured. We did not measure solid-bitumen reflectance but used biomarker (Sun, unpublished results) and Rock-Eval hydrogen index (HI; HI = [100 × S 2 ]/TOC), oxygen index (OI; OI = [100 × S 3 ]/TOC), PI (PI = S 1 /[S 1...
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Journal Article
Journal: AAPG Bulletin
Published: 01 August 2017
AAPG Bulletin (2017) 101 (8): 1277-1307.
... versus oxygen index (OI), the Tesoro 1 Hendershot samples fall in the threshold area in which OI values become stable, but HI values begin a sharp decrease ( Figure 2A ). Consequently, it is hard to determine based on the HI versus OI plot if the original organic matter was type I or type II kerogen...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 2016
AAPG Bulletin (2016) 100 (11): 1693-1722.
... micrometer-scale interparticle pores are formed. These interparticle pore spaces were originally filled with sea water. During bitumen and oil generation, these pores become filled with petroleum. The generalized schematic diagram showing the evolution of pores in the calcite-dominated matrix...
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Journal Article
Journal: Geology
Published: 01 September 2005
Geology (2005) 33 (9): 709-712.
... ) and a cluster of global deep-sea benthic foraminiferal δ 18 O events, known as Oi-2b or 67 Ol ( Wade and Pälike, 2004 ). Wade and Pälike (2004) demonstrated that the array of Oligocene glaciations has strong periodicities of 405 k.y. and 1.2 m.y. Yet, our data indicate that the Oi-2b episode was unique...
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Journal Article
Journal: Geology
Published: 04 August 2017
Geology (2017) 45 (10): 911-914.
... Formation boundaries based on established Gulf Coast stratigraphic ages (see the Data Repository). Vertical dotted lines mark the threshold value (TH) crossed at the Paleocene-Eocene boundary (P-E). PETM—Paleocene–Eocene Thermal Maximum; Oi-1—early Oligocene glaciation; QTZ—quartz. Gulf Coast...
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Journal Article
Journal: Geology
Published: 01 June 2006
Geology (2006) 34 (6): 441-444.
.... , and Blum , P. , 24 others, 2004 , Proceedings of the Ocean Drilling Program, Initial reports, Volume 208 : College Station, Texas , Ocean Drilling Program , p. 1 – 112 . To reconstruct the evolution of Atlantic deep-sea circulation from the greenhouse early Cenozoic mode to the icehouse...
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Journal Article
Published: 01 February 2010
Italian Journal of Geosciences (2010) 129 (1): 156-175.
... from the present coastline and buried at −40 and −18 m with respect to the present sea level. On the basis of macro- and micro-paleontological data, palynology, tephrostratigraphy and absolute dating, these coastal sediments were ascribed to OIS 7 (210-190 ka; Unit I) and OIS 5e (130-110 ka; Unit III...
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Journal Article
Journal: Geophysics
Published: 01 January 2000
Geophysics (2000) 65 (6): 1769-1779.
... sides by an impermeable shale or limestone, then the condition of a closed system will be satisfied for gas generation. Because of the presence of semivertical fault planes and compartmentalization, this condition holds for most North Sea reservoirs. Moreover, gas generation significantly decreases...
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Journal Article
Journal: Geology
Published: 01 August 2007
Geology (2007) 35 (8): 691-694.
... transition (Oi-1, maximum at 33.6 Ma; Coxall et al., 2005 ) was thought to involve the thermal isolation of Antarctica expressed by the formation of the Antarctic Circumpolar Current (ACC; Kennett, 1977 ; Berggren and Hollister, 1977 ). Thermal isolation occurs when the poleward transport of heat by both...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 2018
AAPG Bulletin (2018) 102 (7): 1379-1412.
..., volcanism, atmospheric and ocean chemistry, climate, sea level, and sediment supply ( Dean and Arthur, 1998 ). The Eagle Ford Group was deposited during a major transgressive episode on a carbonate platform south of the Western Interior Seaway. During this time, global perturbations of the carbon cycle gave...
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Journal Article
Journal: Geology
Published: 01 July 2015
Geology (2015) 43 (7): 595-598.
... Mountains of West Virginia, USA (37.97°N, 80.40°W, 600 m above sea level) ( Dasher and Balfour, 1994 ; Springer et al., 2014 ). The speleothem analyzed in this study, BCC-010, was collected from a chamber located ∼35 m below the surface ( Springer et al., 2014 ). At the site, modern drip waters have a mean...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.255.01.06
EISBN: 9781862395039
... is primarily tectonic in origin, the surface bathymetry has been sculpted by erosion and augmented by deposition during cyclical sea-level changes in Pleistocene times. During the last major glacial phase of the Late Pleistocene (Oxygen Isotope Stage (OIS-2), most of the platform margin extending to present...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2008
AAPG Bulletin (2008) 92 (1): 87-125.
... radioactive Muskwa shales, which are now given formation status in the Woodbend Group, are interpreted to record an abrupt sea level rise or transgression across the WCSB ( Williams, 1983 ) and subsequently generated most hydrocarbons in Upper Devonian reservoirs ( Allan and Creaney, 1991 ). Conformably...
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Series: GCSSEPM
Published: 01 December 2012
DOI: 10.5724/gcs.12.32.0609
EISBN: 978-0-9836097-8-0
... along the southern basin margin and offshore across the Beaufort Sea Shelf ( Fig. 1 ). There are many significant oil and gas discoveries ( Dixon et al. , 1994 ; NEB, 1998 ) but no pipeline to transport petroleum to southern markets. Although exploration activity in the region has been cyclic...
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Journal Article
Published: 01 December 1970
Quarterly Journal of Engineering Geology and Hydrogeology (1970) 3 (3): 151-181.
... and a power station 900 ft underground, were the nature of the residual soil mantle and the structure of the underlying rock. Site investigation included over 10 000 ft of cored borings carried out in two stages. The first stage confirmed that there were no major geological impediments to the scheme...
Journal Article
Published: 01 August 2013
Vadose Zone Journal (2013) 12 (3): vzj2012.0097.
... covered by the stations and differences in measurement devices and setup, the quality of the measurements is highly variable. Therefore, appropriate quality characterization is desirable for a correct use of the data sets. This study presents a new, automated quality control system for soil moisture...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP346.10
EISBN: 9781862395947
... plugged conduits to underground passages partially filled with glaciofluvial gravels. Periglacial erosion, and human impact since late oxygen isotope stage (OIS) 3, enhanced sediment influxes. New pollen records, particularly from Lake Selina, provide a 125 ka vegetation and climate record representative...
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Journal Article
Journal: Geology
Published: 01 February 2002
Geology (2002) 30 (2): 191-192.
.... , et al. , Proceedings of the Ocean Drilling Program, Scientific results, Volume 113 : College Station, Texas , Ocean Drilling Program, p. 571 – 594 . Thomas , E. , 1992 , Cainozoic deep-sea circulation: Evidence from deep-sea benthic foraminifera , in Kennett , J.P...
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