A5003452705- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Geological formations and processes
- Paleontology and Stratigraphy of Fossils
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Offshore Engineering and Technologies
- Geochemistry and Geologic Mapping
- Atmospheric and Environmental Gas Dynamics
- Geological Studies and Exploration
- Drilling and Well Engineering
- Reservoir Engineering and Simulation Methods
- Seismic Imaging and Inversion Techniques
- Marine and coastal ecosystems
- Hydraulic Fracturing and Reservoir Analysis
- Marine and environmental studies
- High-pressure geophysics and materials
- Marine Biology and Ecology Research
- Evolution and Paleontology Studies
- Geomagnetism and Paleomagnetism Studies
- Water resources management and optimization
- Water Quality and Resources Studies
- Non-Destructive Testing Techniques
Lamont-Doherty Earth Observatory
2011-2024
Columbia University
2011-2024
Western Michigan University
2005
United States Geological Survey
2005
University of Oregon
2005
The University of Adelaide
2001
University of Toronto
1994
ExxonMobil (United States)
1982-1983
We review Phanerozoic sea-level changes [543 million years ago (Ma) to the present] on various time scales and present a new record for past 100 (My). Long-term sea level peaked at +/- 50 meters during Cretaceous, implying that ocean-crust production rates were much lower than previously inferred. Sea mirrors oxygen isotope variations, reflecting ice-volume change 10(4)- 10(6)-year scale, but link between 10(7)-year scale must be due temperature we attribute tectonically controlled carbon...
Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-rich parental melts that mostly mantle derived. They dominantly consist carbonate minerals such as calcite, dolomite, and ankerite, well minor ...Read More
The International Union of Geological Sciences has approved a new addition to the geologic time scale: Ediacaran Period. is first Proterozoic period be recognized on basis chronostratigraphic criteria and internationally ratified, chronostratigraphically defined any age introduced in more than century. In accordance with procedures established by Commission Stratigraphy, base Period Global Stratotype Section Point (GSSP) placed at Nuccaleena Formation cap carbonate directly above glacial...
Research Article| May 01, 2001 Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth's coldest intervals? Martin J. Kennedy; Kennedy 1Department Earth Science, University California, Riverside, California 92521, USA Search for other works by this author on: GSW Google Scholar Nicholas Christie-Blick; Christie-Blick 2Lamont-Doherty Observatory Columbia University, Palisades, New York 10964, Linda E. Sohl Author Article Information...
The New Jersey Sea Level Transect was designed to evaluate the relationships among global sea level (eustatic) change, unconformity‐bounded sequences, and variations in subsidence, sediment supply, climate on a passive continental margin. By sampling dating Cenozoic strata from coastal plain slope locations, we show that sequence boundaries correlate (within ±0.5 myr) regionally (onshore‐offshore) interregionally (New Jersey‐Alabama‐Bahamas), implicating cause. Sequence with δ 18 O increases...
Research Article| October 01, 2003 Neoproterozoic stratigraphic comparison of the Lesser Himalaya (India) and Yangtze block (south China): Paleogeographic implications Ganqing Jiang; Jiang 1Department Earth Sciences, University California, Riverside, California 92521, USA Search for other works by this author on: GSW Google Scholar Linda E. Sohl; Sohl 2Department Environmental Sciences Lamont-Doherty Observatory Columbia University, Palisades, New York 10964-8000, Nicholas Christie-Blick...
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Research Article| June 01, 2005 U-Pb sensitive high-resolution ion microprobe ages from the Doushantuo Formation in south China: Constraints on late Neoproterozoic glaciations Shihong Zhang; Zhang 1School of Earth Sciences and Resources, China University Geosciences, Beijing 100083, China, SHRIMP Center, Institute Geology, Chinese Academy Geological Sciences, 100037, Search for other works by this author on: GSW Google Scholar Ganqing Jiang; Jiang 2Department Geoscience, Nevada, Las Vegas,...
Abstract The 3- to 5-m-thick Doushantuo cap carbonate in south China overlies the glaciogenic Nantuo Formation (ca. 635 Ma) and consists of laterally persistent, thinly laminated normally graded dolomite limestone indicative relatively deep-water deposition, most likely below storm wave base. basal portion this contains a distinctive suite closely associated tepee-like structures, stromatactis-like cavities, layer-parallel sheet cracks, cemented breccias. cores tepees are composed stacked...
Research Article| August 01, 1999 Paleomagnetic polarity reversals in Marinoan (ca. 600 Ma) glacial deposits of Australia: Implications for the duration low-latitude glaciation Neoproterozoic time Linda E. Sohl; Sohl 1Department Earth and Environmental Sciences Lamont-Doherty Observatory Columbia University, Palisades, New York 10964 Search other works by this author on: GSW Google Scholar Nicholas Christie-Blick; Christie-Blick Dennis V. Kent 2Lamont-Doherty 109643Department Geological...
Research Article| October 01, 2001 Detrital zircon provenance of Mesoproterozoic to Cambrian arenites in the western United States and northwestern Mexico John H. Stewart; Stewart 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025, USA Search for other works by this author on: GSW Google Scholar George E. Gehrels; Gehrels 2Department Geosciences, University Arizona, Tucson, Arizona 85721, Andrew P. Barth; Barth 3Department Geology, Indiana/Purdue University,...
We have reconstructed the Oligocene to Middle Miocene paleobathymetry and stratigraphy of New Jersey margin using a modified backstripping technique. By analyzing geometry through time, we investigate its response fluctuating sea level, changing climate, variable sediment supply during Tertiary. The reconstructions reveal change in morphology from more steeply dipping (1 : 300 1 500) carbonate ramp Eocene flatter shelf with sharp edge at present. This was accomplished by an increase...
Research Article| October 01, 2002 Calibration between eustatic estimates from backstripping and oxygen isotopic records for the Oligocene Stephen F. Pekar; Pekar 1Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA Search other works by this author on: GSW Google Scholar Nicholas Christie-Blick; Christie-Blick 2Department Environmental Sciences Lamont-Doherty Michelle A. Kominz; Kominz 3Department Geosciences, Western Michigan Kalamazoo, 49008, Kenneth G....
Research Article| December 01, 2001 Carbon isotopic composition of Neoproterozoic glacial carbonates as a test paleoceanographic models for snowball Earth phenomena Martin J. Kennedy; Kennedy 1Department Sciences, University California, Riverside, California 92521, USA Search other works by this author on: GSW Google Scholar Nicholas Christie-Blick; Christie-Blick 2Department and Environmental Sciences Lamont-Doherty Observatory Columbia University, Palisades, New York 10964-8000, Anthony R....
A BSTRACT: sequence stratigraphic study of terrigenous and carbonate rocks the Infra Krol Formation Group in Lesser Himalaya fold thrust belt northern India was undertaken as part a broader investigation significance carbon isotope data Neoproterozoic successions. Eight regional discontinuities were traced over distance nearly 300 km, interpretations anchored series local studies involving mapping key beds measurement closely spaced sections. Three surfaces are interpreted boundaries on...
Research Article| December 01, 1991 Tectonic subsidence of the early Paleozoic passive continental margin in eastern California and southern Nevada MARJORIE LEVY; LEVY 1Department Geological Sciences Lamont-Doherty Observatory Columbia University, Palisades, New York 10964 Search for other works by this author on: GSW Google Scholar NICHOLAS CHRISTIE-BLICK Author Article Information Publisher: Society America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print 0016-7606 GSA Bulletin...