A5044290193- Geological and Geochemical Analysis
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Cryospheric studies and observations
- Atmospheric and Environmental Gas Dynamics
- Winter Sports Injuries and Performance
- Geology and Paleoclimatology Research
- Mineralogy and Gemology Studies
- Arctic and Antarctic ice dynamics
- Methane Hydrates and Related Phenomena
- Climate change and permafrost
- Geological Modeling and Analysis
- Marine and fisheries research
- Marine animal studies overview
- Crystal Structures and Properties
- Clay minerals and soil interactions
- Cell Image Analysis Techniques
- Neural Networks and Applications
- Archaeology and ancient environmental studies
- Geochemistry and Elemental Analysis
- Image Retrieval and Classification Techniques
- Geophysics and Gravity Measurements
H.T. Harvey & Associates
2024
Geological Survey of Denmark and Greenland
1997-2022
Natural History Museum of Denmark
2013
Natural History Museum Aarhus
1994-2013
Hochschule Mittweida
2011
University of Copenhagen
1992-2008
Geocenter Denmark
2001
Asiaq Greenland Survey
2000
Danish Gas Technology Centre (Denmark)
1998
Research Article| May 01, 2007 Consistent olivine Mg# in cratonic mantle reflects Archean melting to the exhaustion of orthopyroxene Stefan Bernstein; Bernstein 1Geological Survey Denmark and Greenland, øster Voldgade 10, DK-1350 Copenhagen, Search for other works by this author on: GSW Google Scholar Peter B. Kelemen; Kelemen 2Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York 10964, USA Karen Hanghøj Author Article Information Publisher: Geological Society America...
Abstract. We compile and analyze all available geothermal heat flow measurements collected in around Greenland into a new database of 419 sites generate an accompanying spatial map. This includes 290 previously reported by the International Heat Flow Commission (IHFC), for which we now standardize measurement metadata quality. also 129 sites, have not been IHFC. These consist 88 offshore 41 onshore measurements, 24 are subglacial. employ machine learning to synthesize these situ gridded...
Abstract. We produce the first icefield-wide volume change rate and glacier velocity estimates for Cordillera Darwin Icefield (CDI), a 2605 km2 temperate icefield in southern Chile (69.6° W, 54.6° S). Velocities are measured from optical radar imagery between 2001–2011. Thirty-six digital elevation models (DEMs) ASTER SRTM DEM stacked weighted linear regression is applied to elevations on pixel-by-pixel basis estimate rates. The CDI lost mass at an average of −3.9 ± 1.5 Gt yr−1 2000 2011,...
This study presents bulk-rock major, trace, and platinum-group element data, as well mineral chemistry for peridotites which form large enclaves (up to 500 × 1000 m) within Mesoarchaean orthogneisses of the Akia terrane in Fiskefjord region, southern West Greenland. The largest peridotite body, known Seqi, contains highly fosteritic olivine with a median Mg# 92.6 hosts extensive layers chromitite, can be traced tens metres thicknesses up 30 cm. Thinner (<100 m thick), but 2000 long) sheets...
The Wiedemann Fjord mantle xenoliths from Tertiary basanitic dykes in east Greenland contain extremely depleted spinel harzburgites. harzburgites are unusual because of their highly forsteritic olivine and low modal orthopyroxene, consistent with an origin as residues up to 40% melting. Also present lherzolites contents 50% 25% clinopyroxene, there is a continuous range compositions between the most lherzolites. Osmium isotopic data show that were formed by melt depletion Archaean. In...
Research Article| February 01, 2004 Long-lived postbreakup magmatism along the East Greenland margin: Evidence for shallow-mantle metasomatism by Iceland plume M. Storey; Storey 1Danish Lithosphere Center, Øster Voldgade 10, DK-1350 Copenhagen, Denmark Search other works this author on: GSW Google Scholar A.K. Pedersen; Pedersen 2Geological Museum, 5–7, O. Stecher; Stecher 3 Danish S. Bernstein; Bernstein H.C. Larsen; Larsen L.M. 4Geological Survey of and Greenland, J.A. Baker; Baker 5Danish...
Abstract The gabbros of the Tertiary Kap Edvard Holm Layered Serieshave a stratigraphic thickness more than 5000 m. Earlier work has shown that range in cumulus mineral compositions is restricted (plagioclase An 81 —An 51 ; olivine Fo 85 —Fo 66 pyroxenes Ca 43 Mg 46 Fe 11 to 37 20 ). Field evidence magma injections common, which together with chemistry suggests chamber was frequently replenished by less fractionated magma. A detailed study 600 m section (900–1500 m) Lower Series reveals...
Mineralization of rare-earth elements (REEs) has been discovered in the Karrat Isfjord region West Greenland (~72°N) at Niaqornakavsak on island Qeqertarssuaq along southwestern margin Kangigdleq-Ingia Fjord gneiss dome complex. occurs within a distinct ~30-m-thick horizon an amphibolite host rock, which defines upper boundary Paleoproterozoic Formation. REE mineralization extends across entire Peninsula (1.5 km) with continuation unit 7 km east Umiamako Nuna. Concentrations whole-rock Y +...
Computer-controlled scanning electron microscopy (CCSEM) combines the advantages of energy dispersive X-ray spectrometry (EDX) with those digital image analysis back-scattered (BSE) micrographs. CCSEM a wide range geological or non-geological materials has been introduced at Geological Survey Denmark and Greenland (GEUS) as fast reliable method to determine both chemistry individual grains bulk samples. The chemical is combined measurements two-dimensional size morphology every single grain....
The Kap Edvard Holm Layered Series forms part of the East Greenland Tertiary Province, and was emplaced at shallow crustal level (at depths corresponding to a pressure 1–2 kbar) during continental break-up. It consists two suites: gabbro suite comprising olivine oxide gabbros, leucocratic gabbros anorthosites, wehrlites that formed from intrusion their solidification by hydrous, high-MgO magma. Ion microprobe analyses clinopyroxene reveal chemical contrasts between parental melt wehrlite...
Planning is underway for placement of infrastructure needed to begin offshore wind (OSW) energy generation along the West Coast United States and elsewhere in Pacific Ocean. In contrast primarily nearshore windfarms currently North Atlantic, seabird communities inhabiting Wind Energy Areas (WEAs) include significant populations species that fly by dynamic soaring, a behavior dependent on which flight height increases steeply with speed. Therefore, more precise detailed assessment their 3D...