A5078261171- Geology and Paleoclimatology Research
- Landslides and related hazards
- Cryospheric studies and observations
- Geological formations and processes
- earthquake and tectonic studies
- Climate change and permafrost
- Geophysical and Geoelectrical Methods
- Seismic Waves and Analysis
- Soil Geostatistics and Mapping
- Geophysical Methods and Applications
- Pleistocene-Era Hominins and Archaeology
- Geological Modeling and Analysis
- Geological Studies and Exploration
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Geotechnical Engineering and Underground Structures
- Image Processing and 3D Reconstruction
- Hydrocarbon exploration and reservoir analysis
- Flood Risk Assessment and Management
- Geotechnical Engineering and Analysis
- Geological and Geophysical Studies
- Marine and environmental studies
- Geotechnical and construction materials studies
- Seismology and Earthquake Studies
- Geotechnical and Geomechanical Engineering
Geological Survey of Sweden
2014-2023
EuroGeoSurveys
2017
Fugro (United Kingdom)
2014-2016
University of Cincinnati
2008-2013
A high-resolution chemostratigraphic study of a 24-m-thick section at West Blind Fiord on Ellesmere Island (Canadian Arctic) documents stepwise environmental deterioration in the marine Sverdrup Basin during late Changhsingian (late Late Permian) as result volcanic disturbances to surrounding landmasses. horizon within upper Lindström Formation (datum A) is characterized by increased Fe-oxyhydroxide fluxes and weathering intensity well modest shifts toward more reducing water-mass conditions...
Pre-existing bedrock structures that reactivated following deglaciation through a combination of tectonic and isostatic stresses are well documented in northern Fennoscandia. Due to their possible implications for seismic hazards, there is need document the locations geometries these features. The recent availability high-resolution, LiDAR-derived, digital elevation model covering most Sweden provides an ideal base upon which map post-glacial fault scarps appear crosscut glacial sediments...
We present the first comprehensive glacial-landform map of south Swedish uplands (SSU), deglaciated 15–13 ka ago, using one consistent method and dataset; a Light Detection Ranging-derived digital elevation model. In particular, this focuses on spatial distribution hummock tracts. The tracts reinforces previous thinking broad lobate east–west zone hummocks across southern part SSU. But also reveals pattern confined in what we call corridors that have radial sub-parallel to overall ice-flow...
Extensive glacial lakes dammed in the Scandinavian Mountains during retreat of last Ice Sheet were first hypothesised over a century ago. Here, using high-resolution LiDAR, we report >4500 relict shorelines, deltas and palaeo-channels related to ice-dammed ∼30 000 km2 area central Jämtland, west-central Sweden. Shorelines occur as flights on valley sides, consequence sequential lowering palaeo-lake levels ice margin lower threshold outlets becoming ice-free. Based extent elevation identify...
Abstract We present a 10 Be chronology of late glacial to early Holocene fluctuations Greenland ice sheet outlet glacier and the adjacent Milne Land cap in central East Greenland. Ages boulders on bedrock indicate that both masses receded during Younger Dryas (YD), likely due rising summer temperatures. Since core records register cold mean annual temperatures throughout YD, these ice‐marginal data support climate conditions characterized by strong seasonality. The deposited inner Stade...
Abstract Comparisons of palaeo‐equilibrium line altitudes between the Western and Eastern Cordilleras in Central Andes are commonly based on assumption that tall outermost moraines visible remotely sensed images Cordillera date to Last Glacial Maximum (LGM). However, field investigation geomorphic mapping at Nevado Sajama, Bolivia, indicates relic features with shorter overlying some cases extending beyond them. 36 Cl exposure ages from suggest they Lateglacial times ca. 16.9–10.2 ka....
Geomorphological mapping from the new LiDAR (Light Detection and Ranging)-derived digital elevation model for Sweden a high-resolution multibeam bathymetry data-set Gulf of Bothnia reveals continuous system glacial landforms crossing transition between modern terrestrial marine environments. A palaeo-ice stream in northern Bothnian Sea is reconstructed, with an onset tributary over present-day Ångermanland–Västerbotten coastline. Systematic contrasts landform morphology lineation length...
Abstract. Glacially induced intraplate faults are conspicuous in Fennoscandia where they reach trace lengths of up to 155 km with estimated magnitudes 8 for the associated earthquakes. While typically found northern parts Fennoscandia, there a number published accounts claiming their existence further south and even central Europe. This study focuses on prominent scarp discovered recently lidar (light detection ranging) imagery hypothesized be from post-glacial fault located about 250 north...
Abstract 10 Be terrestrial cosmogenic nuclide surface exposure ages from moraines on Nevado Illimani, Cordillera Real, Bolivia suggest that glaciers retreated during the periods 15.5–13.0 ka, 10.0–8.5 and 3.5–2.0 ka. Late glacial at Illimani are associated with an ELA depression of 400–600 m, which is consistent other local reconstructions late ELAs in Eastern central Andes. A comparison between Western indicates a marked change toward flattening east-to-west regional gradient. This...
Postglacial faults in Sweden are generally believed to have ruptured the surface once either during or shortly after late Weichselian deglaciation. Stratigraphic data from multiple scarps support consistent with this hypothesis and, until now, no refute it. This study presents geomorphic evidence that a segment of Merasjärvi fault northern at least twice. The timing ruptures is poorly constrained because scarp lies within preserved glacial landscape. Crosscutting relationships indicate...
We present a 1:100,000 scale Quaternary geomorphic map covering 2500 km2 in Central Sweden and including the Siljan Impact Structure. Because of crater, area is currently under consideration to become geopark, this project was undertaken document geology that may be interest park organizers future visitors.
ABSTRACT Records of clastic sediment from lakes that receive glacial meltwater provide a means for inferring past fluctuations. However, increased sedimentation has been interpreted to indicate both advance and recession. Here we examine the timing deposition in Challpacocha, glacially fed lake located downvalley Quelccaya Ice Cap (QIC), Peru, comparison with known ice cap margin Using nearby non‐glacial lake, Yanacocha, document record flux Challpacocha reflects meltwater‐derived sediment....
Abstract. Glacially induced intraplate faults are conspicuous in Fennoscandia where they reach trace lengths of up to 155 km with estimated magnitudes 8 for the associated earthquakes. While typically found northern parts Fennoscandia, there a number published accounts claiming their existence further south and even central Europe. This study focuses on prominent scarp discovered recently LiDAR (light detection ranging) imagery hypothesized be from post-glacial fault located about 250 north...
The recent availability of high-resolution digital elevation data has revealed numerous large landslide scars in glaciomarine deposits Western Sweden. In order to determine the timing and cause six such landslides, geomorphic stratigraphic investigations were undertaken. Based on cross-cutting relationships between scarps, raised shorelines, other wave-washed deposits, geomorphology indicates that slides occurred along early Holocene coastlines. Parts each slide below above sea level....