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A site formation model for Cuncaicha rock shelter: Depositional and postdepositional processes at the high‐altitude keysite in the Peruvian Andes
(
- Geoarchaeology
, 2021-11-14)
We report results from geoarchaeological investigations at Cuncaicha rock shelter (4480 m above sea level) in the high Andes of southern Peru. Using field observations, geomorphological, micromorphological, micro‐Fourier ...
Tracking Downstream Variability in Large Grain‐Size Distributions in the South‐Central Andes
(
- Journal of Geophysical Research: Earth Surface
, 2021-08-26)
Mixed sand‐ and gravel‐bed rivers record erosion, transport, and fining signals in their bedload size distributions. Thus, grain‐size data are imperative for studying these processes. However, collecting hundreds to thousands ...
The terrestrial impact crater record: A statistical analysis of morphologies, structures, ages, lithologies, and more
(
- Meteoritics & Planetary Science
, 2021-06-30)
Abstract
The number of newly discovered and confirmed impact structures on earth is growing continuously. In this review paper, the main attributes of 198 confirmed impact structures and 10 further structures, for which ...
The Influence of Sediment Transport on Stationary and Mobile Knickpoints in River Profiles
(
- Journal of Geophysical Research: Earth Surface
, 2021-11-26)
The analysis of stationary and mobile knickpoints has been one of the most powerful concepts in tectonic geomorphology for decades. While several models combining bedrock incision and sediment transport are available, the ...
Alpine architecture and kinematics of deformation of the northern Pelagonian nappe pile in the Hellenides
(
- Austrian Journal of Earth Sciences
, 2010)
Geological mapping and detailed structural investigations combined with geochronological and stratigraphic data, as well as fissiontrack
age dating carried out on the northern part of the Pelagonian basement and the ...
Focused methane migration formed pipe structures in permeable sandstones: Insights from uncrewed aerial vehicle‐based digital outcrop analysis in Varna, Bulgaria
(
- Sedimentology
, 2021-05-24)
Focused fluid flow shapes the evolution of marine sedimentary basins by transferring fluids and pressure across geological formations. Vertical fluid conduits may form where localized overpressure breaches a cap rock ...
The Evolution of Central Volcanoes in Ultraslow Rift Systems: Constraints From D. João de Castro Seamount, Azores
(
- Tectonics
, 2021-06-29)
The Dom João de Castro seamount in the Hirondelle Basin (Azores) is a central volcano on the ultraslow diverging Terceira Rift axis. The combination of structural and geochemical data provides insights into the evolution ...
Characterizing Water Flow in Vegetated Lysimeters with Stable Water Isotopes and Modeling
(
- Groundwater
, 2019)
We have used stable water isotopes (δ18O, δ2H) in combination with lumped-parameter modeling for characterizing unsaturated flow in two lysimeters vegetated with maize. The lysimeters contained undisturbed soil cores ...
Efficiency and Accuracy of Micro-Macro Models for Mineral Dissolution
(
- Water Resources Research
, 2020)
Micro-macro models for dissolution processes are derived from detailed pore-scale models applying upscaling techniques. They consist of flow and transport equations at the scale of the porous medium (macroscale). Both ...
Rock Glacier Characteristics Under Semiarid Climate Conditions in the Western Nyainqêntanglha Range, Tibetan Plateau
(
- Journal of Geophysical Research: Earth Surface
, 2022-01-07)
Rock glaciers are receiving increased attention as a potential source of water and indicator of climate change in periglacial landscapes. They consist of an ice‐debris mixture, which creeps downslope. Although rock glaciers ...