A5049056110- Geological formations and processes
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Geographic Information Systems Studies
- Hydrology and Sediment Transport Processes
- Geological and Geochemical Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Paleontology and Stratigraphy of Fossils
- earthquake and tectonic studies
- Geological Modeling and Analysis
- Geological and Tectonic Studies in Latin America
- Seismic Imaging and Inversion Techniques
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Geochemistry and Geologic Mapping
- Pleistocene-Era Hominins and Archaeology
- Reservoir Engineering and Simulation Methods
- Cryospheric studies and observations
- Drilling and Well Engineering
- Landslides and related hazards
- Underwater Acoustics Research
- Primate Behavior and Ecology
- Maritime and Coastal Archaeology
- Remote Sensing and LiDAR Applications
University of Calgary
2016-2025
Sorbonne Université
2019-2023
Utrecht University
2019-2023
Curtin University
2021-2023
Louisiana State University
2019-2023
The Open University
2021-2023
Ifremer
2022
Université de Bretagne Occidentale
2022
Centre National de la Recherche Scientifique
2022
British Geological Survey
2019-2021
The calculation of a maximum depositional age (MDA) from detrital zircon sample can provide insight into variety geological problems. However, the impact size and method on accuracy resulting MDA has not been evaluated. We use large populations synthetic dates (N ≈ 25,000) to analyze varying (n), measurement uncertainty, abundance near-depositional-age zircons uncertainty 9 commonly used methods. Furthermore, new method, youngest statistical population is tested. For each 500 samples n were...
The bitumen of the Lower Cretaceous McMurray Formation in Alberta arguably represents one most important hydrocarbon accumulations world. In-situ development relies on heat transfer through reservoir via horizontal steam injection wells placed 4 to 6 m (13–20 ft) above producers near base sandstone reservoirs. Given this technology, understanding distribution resource is paramount for a successful program. Sedimentary facies provide direct control and recovery. Most models developed describe...
Submarine gravity flows are a key process for transporting large volumes of sediment from the continents to deep sea. The location, volume, and character bypassed by these dictates areal extent thickness associated deposits. Despite its importance, bypass is poorly understood in terms flow processes stratigraphic expression. We first examine relationships between physical parameters that govern flows, before assessing variable expression modern seafloor, outcrop, subsurface datasets....
Abstract Counter point bar deposits in the meandering Peace River, North‐central Alberta, Wood Buffalo National Park, are distinct from terms of morphology, lithofacies and reservoir potential for fluids. Previously referred to as distal‐most parts bars, tails concave bank‐bench deposits, counter have morphological scroll patterns rather than convex with bars. The is a large river (bankfull discharge 11 700 m 3 sec −1 , width 375 m, depth 15 gradient 0·00004 or 4 cm km ) which dominated by...
Abstract Coarse‐grained deep‐water strata of the Cerro Toro Formation in Cordillera Manuel Señoret, southern Chile, represent deposits a major channel belt (4 to 8 km wide by >100 long) that occupied foredeep Magallanes basin during Late Cretaceous. Channel comprise ca 400 m thick conglomeratic interval (informally named ‘Lago Sofia Member’) encased bathyal fine‐grained units. Facies Lago Member include sandy matrix conglomerate (that show evidence traction‐dominated deposition and...
The processes within deep-sea sediment-routing systems are difficult to directly monitor. Therefore, we rely on other means decipher the sequence and relative magnitude of events related erosion, sediment bypass, deposition channels that crosscut seascape, in particular, continental slopes. In this analysis, examine nature slope channel fill outcrop (Cretaceous Tres Pasos Formation, southern Chile) order evaluate geological evidence full cycle, from inception terminal infill with sediment,...
Submarine channels have been important throughout geologic time for feeding globally significant volumes of sediment from land to the deep sea. Modern observations show that submarine can be sculpted by supercritical turbidity currents (seafloor flows) generate upstream-migrating bedforms with a crescentic planform. In order accurately interpret flows and depositional environments in record, it is able recognize signature bedforms. Field geologists commonly link scour fills containing...
The three-dimensional reconstruction of meander-belt deposits from ancient strata provides insight into the formative processes meander-bend evolution and paleogeographic interpretations. A significant challenge to such analyses is limited exposures in outcrop belts widely spaced or sparse subsurface datasets. An unprecedented dataset consisting 600 km2 3-D seismic data over 1000 well penetrations Cretaceous McMurray Formation northeastern Alberta, Canada, a unique opportunity characterize...
Abstract The Cretaceous–Paleogene Tres Pasos and Dorotea formations of the Magallanes Basin, Chile record filling a deep-water foreland setting. Slope clinoforms with at least 700–900 m relief (compacted) prograded southward along foredeep axis, which was oriented parallel to adjacent Patagonian Andes. Fluvial- wave-influenced deltaic deposits Formation represent upper, flat portions sigmoidal slope profiles. paleo-shelf edge is estimated where shelf sandstones pinch-out basinward. Mudstone,...
Research Article| June 01, 2011 Sedimentology and stratigraphic architecture of a point bar deposit, Lower Cretaceous McMurray Formation, Alberta, Canada Phillip A. Labrecque; Labrecque Imperial Oil Resources Limited, 237-4 Avenue SW, Calgary, AB T2P 0H6, phillip.a.labrecque@esso.ca Search for other works by this author on: GSW Google Scholar Jerry L. Jensen; Jensen University Department Chemical Petroleum Engineering, T2N 1N4, jjensen@ucalgary.ca Stephen M. Hubbard; Hubbard Geoscience,...
The fragmentary nature of the stratigraphic record is particularly evident with respect to fluvial deposits, which are characterized by a hierarchy depositional units deposited over wide range time scales and sedimentation rates. We quantified completeness in meander-belt deposits through deducing total area bar versus what ultimately preserved record, using as surrogate metric for sediment volume. Data sets were evaluated numerical model, modern Mississippi River valley, Cretaceous McMurray...
Abstract Meander belts are characterized by a complex amalgam of point bars and associated depositional elements, such as oxbow-lake fills. Point-bar deposits composite elements often scroll-bar patterns formed in response to processes expansion, rotation, translation meander bend. Intra-point-bar erosion is commonly observed modern river systems, yet its product rarely described from the ancient record. Late Cretaceous meander-belt deposits, consisting transition point-bar counter-point-bar...
Abstract The McMurray Formation of the Athabasca Oil Sands is one largest hydrocarbon resources on Earth and contains an extensive record Early Cretaceous sedimentation. provenance sandstones that constitute this formation has remained largely unknown. New U-Pb detrital zircon ages (n = 848) a complicated variable history involves several major tectonic regions from across North America. detrital-zircon signatures indicating sediment sources associated with Canadian Shield, eastern America,...
Turbidity currents are powerful flows of sediment that pose a hazard to critical seafloor infrastructure and transport globally important amounts the deep sea. Due challenges direct monitoring, we typically rely on their deposits reconstruct past turbidity currents. Understanding these is complicated because successive can rework or erase previous deposits. Hence, depositional environments dominated by currents, such as submarine channels, only partially record But precisely how incomplete...
Fluvial deposits are highly heterogeneous and inherently challenging to map in outcrop due a combination of lateral vertical variability along with lack continuous exposure. Heavily incised landscapes, such as badlands, reveal three-dimensional (3-D) outcrops that ideal for constraining the geometry fluvial enabling reconstruction channel morphology through time space. However, these complex 3-D landscapes also create challenges conventional field mapping techniques, which offer limited...
Deciphering depositional age from deposits that accumulate in deep-water slope settings can enhance understanding of shelf-margin evolutionary timing, as well controlling mechanisms ancient systems worldwide. Basin analysis has long employed biostratigraphy and/or tephrochronology to temporally constrain environments. However, due poor preservation index fossils and volcanic ash beds many systems, deducing the timing evolution proven challenging. Here, we present >6600 new U-Pb zircon ages...
Abstract Rapid environmental change is a catalyst for human evolution, driving dietary innovations, habitat diversification, and dispersal. However, there dearth of information to assess hominin adaptions changing physiography during key evolutionary stages such as the early Pleistocene. Here we report multiproxy dataset from Ewass Oldupa, in Western Plio-Pleistocene rift basin Olduvai Gorge (now Oldupai), Tanzania, address this lacuna offer an ecological perspective on adaptability two...
Steep rock slopes present key opportunities and challenges within Earth science applications. Due to partial or complete inaccessibility, high-precision surveys of these high-relief landscapes remain a challenge. Direct georeferencing (DG) unoccupied aerial vehicles (UAVs) with advanced onboard GNSS receivers presents generate high-resolution 3D datasets without ground-based access the study area. However, recent research has revealed large vertical errors using DG that may prove problematic...
Until recently, despite being one of the most important sediment transport phenomena on Earth, few direct measurements turbidity currents existed. Consequently, their structure and evolution were poorly understood, particularly whether they are dense or dilute. Here, we analyze largest number monitored to date from source sink. We show internal flow characteristic as runout. Observed frontal regions (heads) fast (>1.5 m/s), thin (<10 m), (depth averaged concentrations up 38%vol), strongly...