A5029159683- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Evolution and Paleontology Studies
- Geomagnetism and Paleomagnetism Studies
- Geological formations and processes
- Geochemistry and Elemental Analysis
- Paleontology and Evolutionary Biology
- Magnetic and Electromagnetic Effects
- Indigenous Studies and Ecology
- Economic Development and Regional Competitiveness
- Mineral Processing and Grinding
- Mining and Gasification Technologies
- Climate change and permafrost
- Geological and Geophysical Studies Worldwide
- Cryospheric studies and observations
- Geological Formations and Processes Exploration
- Methane Hydrates and Related Phenomena
- Fire effects on ecosystems
Geological Survey of Canada
2016-2023
Natural Resources Canada
2016-2022
Institute of Natural Sciences
2013
Universidad Complutense de Madrid
2013
University of Modena and Reggio Emilia
2010
The Devonian has long been a problematic period for paleomagnetism. paleomagnetic data are generally difficult to interpret and have complex partial or full overprints– problems that arise in obtained from both sedimentary igneous rocks. As result, the reconstruction of tectonic plate motions, largely performed using apparent polar wander paths, large uncertainty. Similarly, geomagnetic polarity time scale is very poorly constrained. Paleointensity studies volcanic units suggest field was...
Abstract Hyper-enriched black shale (HEBS) Ni-Mo-Zn-Pt-Pd-Au-Re mineralization is geographically widespread across the Richardson trough in northern Yukon (Canada), where it discontinuously outcrops at regional contact between Road River Group and overlying Canol Formation. Stratigraphic relationships indicate that Middle Devonian, but there are no precise age constraints for HEBS. We apply Re-Os geochronology to HEBS from two localities 130 km apart, Nick prospect Peel showing, date...
This study proposes six new lithostratigraphic units and redefines two others within the Horn River Group (HRG), a shale-dominated succession recently prospected for shale hydrocarbons. Its lower Hare Indian Formation rests on drowning unconformity. In SOB area (the between Norman Wells Keele tectonic zone), this formation consists of Bluefish black shale, Francis Creek grey Prohibition members. The latter are lateral equivalents Bell Member (updated definition) in northern part area....
Conodont biostratigraphic research on the Comabella Formation at Villech (Spanish Central Pyrenees), a 54 m thick pinkish-greyish compact hemipelagic limestone section situated in Compte "subfacies area", reveals an Eifelian to early Frasnian age for studied interval.The base of is lower (costatus Zone), indicated by lowest local record Polygnathus angustipennatus, associated with P. partitus.The kockelianus and eiflius zones are recognized half section.The uppermost lowermost Givetian...
Abstract Samples from the Upper Frasnian (Devonian) of Lompret Quarry and Nismes railway section in Dinant Synclinorium, southern Belgium, yielded several chondrichthyan teeth scales. The belong to three genera: Phoebodus, Cladodoides Protacrodus. comparison with selected Late assemblages seas between Laurussia Gondwana revealed substantial local differences taxonomic composition due palaeoenvironmental conditions, such as depth, distance submarine platforms, oxygenation water, possibly also...
Abstract The Canol Formation is only 24.5 m thick at its historic type section Powell Creek, northern Mackenzie Mountains, whereas in the off-bank sections of Plain subsurface, where it considered a high-quality shale hydrocarbon prospect, thickens to 60–120 m. This paper reviews available lithological and conodont biostratigraphic information from section, discusses choices contacts subdivisions, explores limits regional correlation using gamma spectrometry proxies. We position base top...
The conodont collection from the nodular limestone beds of Su Nuargi II outcrop near Domusnovas in SW-Sardinia (Italy) is restudied for purpose reassessing and updating to most recent taxonomy. important SW island exposing Middle Devonian rocks. Forty-five taxa have been identified collection, positioning within interval covering the timorensis to latifossatus zones (Lower Givetian) slightly widening interpretation Olivieri (1985). A new morphotype of Polygnathus linguiformis is...
Abstract Eight sections representing the upper Silurian of SE Sardinia have been correlated using Graphic Correlation. New data combined with already published allow high-resolution correlations between and a subdivision into 24.7 Composite Standard Units (CSU). The well-known Silius section was chosen as reference for studied area. Correlations Sardinian composite standard outside area (Cellon in Carnic Alps, Klonk Bohemia Mason Porcus SW Sardinia) show an earlier first occurrence Oulodus...
The Devonian, like much of the Paleozoic, has long been a problematic period for paleomagnetism. Devonian paleomagnetic data are generally difficult to interpret and have complex partial or full overprints; problems that arise in obtained from both sedimentary igneous rocks. As result, reconstruction tectonic plate motions, performed largely using apparent polar wander paths, large uncertainty. Similarly, geomagnetic polarity time scale is very poorly constrained. Paleointensity studies...
The second half of the Devonian featured widespread deposition organic matter on continental shelves. Distinct pulses anoxic sediments, associated with positive δ 13 C excursions, are recognized as or carbon-cycle perturbation events. Many these events coupled turnovers in marine faunas, including those ranked major mass extinctions. Causes and controls debated. In absence ocean-floor stratigraphic archives, much-needed elucidations can be provided by high-resolution multiproxy records...