A5066075127- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Astro and Planetary Science
- Offshore Engineering and Technologies
- Geological and Geophysical Studies
- Astronomical Observations and Instrumentation
- Planetary Science and Exploration
- Geophysics and Gravity Measurements
- Reservoir Engineering and Simulation Methods
- Spacecraft and Cryogenic Technologies
- Geomagnetism and Paleomagnetism Studies
- Seismic Imaging and Inversion Techniques
- Geological and Tectonic Studies in Latin America
- Geological formations and processes
- Geological Modeling and Analysis
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Scientific Research and Discoveries
- Solar and Space Plasma Dynamics
- Astronomy and Astrophysical Research
- Nuclear Physics and Applications
- Atmospheric and Environmental Gas Dynamics
- Geological Studies and Exploration
GFZ Helmholtz Centre for Geosciences
2023-2025
International Ocean Discovery Program
2021-2024
Laboratoire d’Océanologie et de Géosciences
2024
Center for Scientific Research and Higher Education at Ensenada
2015-2023
RWTH Aachen University
2011-2021
University of Bremen
2021
Karlsruhe Institute of Technology
2015
University of Basel
2011
Leipzig University
2009
Abstract Heat flow is estimated at eight sites drilled int the Guaymas Basin, Gulf of California, during International Ocean Discovery Program Expedition 385. The expedition sought to understand thermal regime basin and heat transfer between off‐axis sills intruding organic‐rich sediments floor. distinct sedimentation rates, active tectonics, magmatism make interesting for scientific discoveries. Results show that corrected values range 119–221 mW/m 2 in 257–1003 site a young sill intrusion,...
Abstract Hydrothermal vent fields located in the gap between known sites Guaymas Basin and 21°N on East Pacific Rise were discovered Alarcón southern Pescadero Basin. The spreading segment was mapped at 1‐m resolution by an autonomous underwater vehicle. Individual chimneys identified using bathymetric data. Vent interpreted as active from temperature anomalies water column data observed sampled during remotely operated vehicle dives. Ja Sít, Pericú, Meyibó are near eruptive fissure of...
Since 1963, the International Heat Flow Commission has been fostering compilation of Global Database to provide reliable heat-flow data. Over time, techniques and methodologies evolved, calling for a reorganization database structure reassessment stored Here, we results collaborative, community-driven approach set-up new, quality-approved global database. We present background information on how is determined this important thermal parameter could be systematically evaluated. The latter...
Abstract Magma emplacement in the top unconsolidated sediments of rift basins is poorly understood. We compare two shallow sills from Guaymas Basin (Gulf California) using core data and analyses IODP Expedition 385, high‐resolution 2D seismic data. show that magma stalling uncemented sediment layer controlled by transition siliceous claystone to silica‐rich sediment, favoring flat sill formation. Space created through a combination viscous indentation, magma‐sediment mingling fluidization...
Periodic revisions of the Global Heat Flow Database (GHFD) take place under auspices International Commission (IHFC) Association Seismology and Physics Earth's Interior (IASPEI). A growing number heat-flow values, advances in scientific methods, digitization, improvements database technologies all warrant a revision structure GHFD that was last amended 1976. We present new for GHFD, which will provide basis reassessment existing global data set. The fields within are described detail to...
The Powell Basin is a small oceanic basin bounded by continental blocks that fragmented during break up of Antarctica from South America. This bounds the Orkney Microcontinent to east, Scotia Ridge north, and Antarctic Peninsula west. timing its opening poorly constrained due low amplitude spreading magnetic anomalies which hampers their identification interpretation causing large uncertainties in proposed ages range Late Eocene Early Miocene. has been extensively studied using variety...
Temperature affects the timing of transformation amorphous silica (opal-A) into crystalline (opal-CT) exponentially. Thus, in hot subseafloor environments opal-A is expected to convert opal-CT at relatively shallow burial depths, where situ temperatures do not exceed ∼56 °C, as it has been previously observed various deep-sea sites and onshore rock outcrops well assessed during lab experiments. The response biosilica (biogenic opal-A) diagenesis steep geothermal gradients (∼224–529 °C/km)...
European hares (Lepus europaeus) are thought to select resting places pro- viding cover, protect themselves against predators and unfavourable weather conditions. We tested this hypothesis by flushing wild from their assessing the cover at hare forms. The vegetation was generally found be higher than 30 cm, i.e. approximate height of a hare. As compared randomly chosen control points, showed preference for through- out year. From April August, all investigated habitat categories, but most...
Garments treated with chemical insecticides are commonly used to prevent mosquito bites. Resistance insecticides, however, is threatening the efficacy of this technology, and people increasingly concerned about potential health impacts wearing insecticide-treated clothing. Here, we report a mathematical model for fabric barriers that resist bites from Aedes aegypti mosquitoes based on textile physical structure no insecticides. The was derived morphometrics analysis biting behavior. Woven...
Sedimentary nitrogen isotopic ratios are used as a proxy for ancient biogeochemical cycles on Earth's surface. It is generally accepted that sediment core tops record primary signatures because organic (ON) predominant in this part of the core. In contrast to such early middle diagenetic stages, it well known heavier isotope 15N tends enrich sedimentary and metamorphic rocks during latter stages. However, there some critical gaps our understanding alteration associated with abiotic processes...
Abstract Investigations (calculations) based on a warp yarn tension analysis knitting machine with multiaxial weft insertion allow prospective reduced differences in technical knits. From this future opportunity is provided to substitute the subjective let-off adjustment by model of control. The outcome higher reproducibility associated increasing process reliability and rising product quality.
The Pescadero Basin Complex (PBC) comprises three distinctive rhomb-shaped pull-apart basins separated by short and highly overlapped transform faults. Multibeam bathymetric data collected from ship at 40-m resolution, combined with the interpretation of 2D high-resolution multichannel seismic reflection profiles, were used to establish architecture PBC. Detailed mapping cross-sectional kinematic modeling based on images North reveal a evolved pull-part geometry, characterized well defined...
A prototype system for automatic in-line flaw detection in industrial woven fabrics is presented. Where state of the art systems operate on low-resolved (≈ 200 ppi) image data, we describe here process flow to segment single yarns high-resolved 1000 textile images. This work partitioned into two parts: First, mechanics, machine integration, vibration cancelling and illumination scenarios are discussed based integration a real loom. Subsequently, software framework high precision fabric...
Abstract Heat flow measurements collected throughout the Auka and JaichMaa Ja'ag' hydrothermal vent fields in central graben of Southern Pescadero Basin, southern Gulf California, indicate upflow fluids associated with rifting dissipate heat excess 10 W/m 2 around faults that have a few kilometers length. Paradoxically, longer do not show signs venting. anomalies slowly decay to background values ∼2 at distances ∼1 km from these following an inverse square‐root distance law. We develop...