A5038636789- Methane Hydrates and Related Phenomena
- Drilling and Well Engineering
- Geology and Paleoclimatology Research
- Geological formations and processes
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Astro and Planetary Science
- Offshore Engineering and Technologies
- Astronomical Observations and Instrumentation
- Spacecraft and Cryogenic Technologies
- Oil and Gas Production Techniques
- Geophysics and Gravity Measurements
- Education Systems and Policy
- Hydrocarbon exploration and reservoir analysis
- Geomagnetism and Paleomagnetism Studies
- Geological and Geophysical Studies
- Paleontology and Stratigraphy of Fossils
- Planetary Science and Exploration
- Geological Studies and Exploration
- Cryospheric studies and observations
- Evaluation and Performance Assessment
- Marine and environmental studies
- Polar Research and Ecology
- Interdisciplinary Research and Collaboration
- Scientific Research and Discoveries
Wesleyan University
2008-2024
Boise State University
2024
University of Georgia
2014-2021
Texas A&M University
1987-2021
United States Office of Personnel Management
2021
Sam Houston State University
2021
University of Plymouth
2021
Geological Survey of Western Australia
2021
Tongji University
2021
Discovery Place
2021
Abstract Antarctica is one of the most vulnerable regions to climate change on Earth and studying past present responses this polar marine ecosystem environmental a matter urgency. Sedimentary ancient DNA ( sed aDNA) analysis can provide such insights into ecosystem-wide changes. Here we authenticated (through extensive contamination control aDNA damage analysis) metagenomic eukaryote from Scotia Sea region acquired during IODP Expedition 382. We also record ~1 Mio. years diatom chlorophyte...
Research Article| August 01, 1985 Sediment slides and turbidity currents on the Laurentian Fan: Sidescan sonar investigations near epicenter of 1929 Grand Banks earthquake David J. W. Piper; Piper 1Atlantic Geoscience Centre, Geological Survey Canada, Bedford Institute Oceanography, P.O. Box 1006, Dartmouth Nova Scotia B2Y 4A2 Canada Search for other works by this author on: GSW Google Scholar Alexander N. Shor; Shor 2Lamont-Doherly Observatory Columbia University, Palisades, New York 10964...
Bacterial wilt, caused by Ralstonia solanacearum, can result in severe losses to tomato (Solanum lycopersicum) growers the southeastern United States, and grafting with resistant rootstocks may be an effective strategy for managing this disease. However, R. solanacearum populations maintain considerable diversity, little information is known regarding efficacy of commercially available reduce bacterial wilt incidence subsequent crop loss States. In study, plants grafted onto 'Dai Honmei'...
Abstract The Southern Ocean paleoceanography provides key insights into how iron fertilization and oceanic productivity developed through Pleistocene ice-ages their role in influencing the carbon cycle. We report a high-resolution record of dust deposition ocean for Antarctic Zone, close to main source, Patagonia. Our deep-ocean records cover last 1.5 Ma, thus doubling that from ice-cores. find 5 15-fold increase during glacials 2 5-fold biogenic silica deposition, reflecting higher...
Research Article| June 01, 2004 Enhanced marine productivity off western North America during warm climate intervals of the past 52 k.y. J.D. Ortiz; Ortiz 1Department Geology, Kent State University, Kent, Ohio 44242, USA Search for other works by this author on: GSW Google Scholar S.B. O'Connell; O'Connell 2Department Earth and Environmental Sciences, Wesleyan Middletown, Connecticut 06459, J. DelViscio; DelViscio W. Dean; Dean 3U.S. Geological Survey, Surface Processes, Box 25046, MS 980,...
Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum) throughout the southeastern United States. Grafting is an emerging technology in U.S. production, growers require information regarding resistance characteristics conferred by rootstocks. In this study, southern (SB) (RKN) were effectively managed using interspecific hybrid During 2007 2008, field trials carried out at two locations that had soils...
Organic and heirloom tomatoes are high-value products with growing demand but there many challenges to successful cultivation. A systems comparison study was carried out evaluate the production of popular tomato ‘Cherokee Purple’ ( Solanum lycopersicum L.) under high tunnel open field in North Carolina from 2007 2008. Management (i.e., temperature irrigation), weather events as well pest disease pressure influenced crop quality yield. The achieved similar total yields (100 t·ha −1 ) first...
ABSTRACT Susac syndrome can resemble various disorders resulting in a delayed or missed diagnosis and subsequent delays treatment. Here, we present how successful consideration of patient history, symptoms, ancillary testing led to prompt treatment by ophthalmologists. A 27-year-old active duty infantryman presented with sudden vision loss the right eye during strenuous exercise after experiencing similar symptoms left 5 months earlier. The patient’s medical history was notable for mixed...
IODP Site U1537 is located in a contourite deposit the Dove Basin of southeastern Scotia Sea, 3,713 meters water. It consists alternating diatom oozes and silty clays, with variable amounts sand to gravel-sized clasts delivered as IRD.   Shipboard track measurements, weight percent ice-rafted detritus (IRD), 40Ar/39Ar hornblende biotite age (provenance), split core XRF elemental measurements were collected examined study Antarctic ice-sheet dynamics between 1.75 3.35 Ma,...
The middle Miocene climate optimum (c. 14.2 to 13.8 Ma), a significant warm period, was followed by series of step-wise global cooling and Antarctic ice-sheet expansion events visible in marine isotope records (e.g., Holbourn et al., 2013), the oldest which is termed mid-Miocene transition. Associated episodes instability iceberg calving are recorded ice-rafted debris mid- high-latitude sediment, accessible via deep-sea sediment cores around margin. Paleo-ice sheet models indicate that...
Diffuse reflectance records from Feni Drift in the North Atlantic faithfully record sediment percent carbonate. A high‐resolution, reflectance‐based age model for these sediments derived an orbitally tuned western equatorial Atlantic, Ceara Rise was generated by spectral frequency mapping. Power spectra of indicate statistically significant sub‐Milankovitch cyclicity at 7.6–8.4 and 4.8–6.1 kyr. We infer that ∼8 ∼5 kyr cycles document a linkage between climate given our ability to correlate...
Scotia Sea and the Drake Passage is key towards understanding development of modern oceanic circulation patterns their implications for ice sheet growth decay. The sedimentary record southern basins documents regional tectonic, oceanographic climatic evolution since Eocene. However, a lack accurate age estimations has prevented calibration reconstructed history. upper was scientifically drilled first time in 2019 during International Ocean Discovery Program (IODP) Expedition 382, recovering...