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Showing 33651 to 33700 of 59105 works
Asperity failure control of stick-slip along brittle faults
Stick-slips are spontaneous, unstable slip events during which a natural or man-made system transitions from a strong, sticking stage to a weaker, slipping stage. Stick-slips were…
Zur Umwelt des Menschen: Kartographische Ingenieurarbeiten
In diesem, mit starker Verzögerung erschienenen Band, berichten einige Ingenieure über ihre Abschlußarbeiten. Sie folgen dabei der schon in Band 1 dieser Schriftenreihe veröffentl…
Metastable olivine wedge beneath the Japan Sea imaged by seismic interferometry
The metastable olivine wedge (MOW) within subducted slabs has long been hypothesized to host deep-focus earthquakes (>300 km). Its presence would also rule out hydrous slabs be…
Non-stationary teleconnection between the Pacific Ocean and Arctic sea ice
Over the last 40 years observations show a teleconnection between summertime Pacific Ocean sea-surface temperatures and September Arctic sea-ice extent. However, the short satelli…
Untersuchungen zu Deformation und Metamorphose im Attischen Kristallin, Griechenland
Auf der Attischen Halbinsel wurden drei Kristallingebiete (Pentelikon, Hymettos und Lavrion) auf ihre gefügekundliche und metamorphe Entwicklung hin untersucht. Schieferkomplexe m…
Redox-informed models of global biogeochemical cycles
Microbial activity mediates the global flow of carbon, oxygen, nitrogen, and other elements, including climatically significant gases. However, non-photosynthetic microbial activi…
Deep Low-Frequency Earthquakes Associated with the Eruptions of Shinmoe-dake in Kirishima Volcanoes
Deep low-frequency (DLF) earthquakes occur beneath the Kirishima volcanoes in southwest Japan at depths of 10–30 km. In this study, we aim to reveal the relationship between DLF e…
Climate change resilient agricultural practices: A learning experience from indigenous communities over India
The impact of climate change on agricultural practices is rising question marks on future food security of billions of people in tropical and sub-tropical region. Recently introdu…
Das Paläogen am Südrand des zentralen Hohen Atlas und im Mittleren Atlas Marokkos: Stratigraphie, Fazies, Paläogeograph…
Die paläogenen Schichten im Mittleren Atlas und am Südrand des zentralen Hohen Atlas (Umrahmung des Neogen-Beckens von Ouarzazate östlich Asseghmou) wurden litho-, bio- und sequen…
Controls of River Dynamics on Residence Time and Biogeochemical Reactions of Hydrological Exchange Flows in A Regulated…
Residence Time Distributions (RTDs) exerts an important control on biogeochemical translations in watershed systems. RTDs tend to follow time-invariant exponential, lognormal, or …
The water planetary boundary: interrogation and revision
The planetary boundaries framework has proven useful for many global sustainability contexts, but is challenging to apply to freshwater, which is spatially heterogeneous, part of …
Does a damaged fault zone mitigate the near-field landslide risk during supershear earthquakes?—Application to the 2018…
The impact of earthquakes can be severely aggravated by cascading secondary hazards. The 2018 Mw 7.5 Palu, Indonesia earthquake led to devastating tsunamis and landslides, while t…
Grain-scale deformation mechanisms and evolution of porosity in experimentally deformed Boom Clay
Boom Clay is a soft, slightly overconsolidated, uncemented claystone considered as potential host material for a radioactive waste repository in Belgium. We studied the evolution …
Integrating the water planetary boundary with water management from local to global scales
The planetary boundaries framework defines the ‘safe operating space for humanity’ represented by nine global processes which can destabilize the Earth System if perturbed. The wa…
Research trends in the use of remote sensing for inland water quality science: Moving towards multidisciplinary applica…
Remote sensing approaches to measuring inland water quality date back nearly 50 years to the beginning of the satellite era. Over this time span, hundreds of peer reviewed public…
An empirical approach to estimating hydrocarbon column heights for improved pre-drill volume prediction in hydrocarbon…
Estimating pre-drill volumes in hydrocarbon exploration involves dealing with geological and technical uncertainties. The prediction of the hydrocarbon column height is widely rec…
Die Vermessung der Längenfelder
research
Key controls on hydrocarbon retention and leakage from structural traps in the Hammerfest Basin, SW Barents Sea: implic…
Evidence of hydrocarbon leakage has been well documented across the SW Barents Sea and is commonly associated with exhumation in the Cenozoic. However, further study is required t…
The North American hydrologic cycle through the last deglaciation
While the climate evolution of North America during the last deglaciation has received considerable attention, few detailed model–data comparisons of the deglacial hydroclimate ha…
Submarine drainage distribution and main sediment transfer pathways along the Brazilian continental margin
We mapped the main drainage systems using the available regional bathymetric grids in order to understand the canyon and channel distribution along the margin and identify the …
Thermal and magnetic evolution of a crystallizing basal magma ocean in Earths mantle
We present the thermochemical evolution of a downward crystallizing BMO overlying the liquid outer core and probe its capability to dissipate enough power to generate and sustain …
Geochemisch-sedimentologische und tektonische Untersuchungen am Uweinat-Safsaf-Aswan-Schwellensystem (Südägypten, Nords…
In der vorliegenden Arbeit wird das Uweinat-Safsaf-Aswan-Schwellensystem, das die südliche Begrenzung des Dakhla-Beckens darstellt, einer eingehenden sedimentologischen, geochemis…
Mechanisms controlling fluid break-up and reconnection during two-phase flow in porous media
The use of Darcys law to describe steady-state multiphase flow in porous media has been justified by the assumption that the fluids flow in continuously connected pathways. Howev…
Machine Learning Reveals the Seismic Signature of Eruptive Behavior at Piton de la Fournaise Volcano
Volcanic tremor is key to our understanding of active magmatic systems but, due to its complexity, there is still a debate concerning its origins and how it can be used to charact…
Holocene relative sea-level changes and glacial isostatic adjustment of the U.S. Atlantic coast
The first quality-controlled Holocene sea-level database for the U.S. Atlantic coast has been constructed from 686 sea-level indicators. The database documents a decreasing rate o…
An introduction to seismic diffraction
Despite its unique properties the diffracted seismic wavefield is still rarely exploited in common practice. Although the first works on seismic diffraction date back at least as …
Canopy structure explains the relationship between photosynthesis and sun-induced chlorophyll fluorescence in crops
Remote sensing of far-red sun-induced chlorophyll fluorescence (SIF) has emerged as an important tool for studying gross primary productivity (GPP) at the global scale. However, t…
Photographischer Lothapparat
research
Repeated degradation and progradation of a submarine slope over geological timescales
Submarine slopes prograde via accretion of sediment to clinoform foresets, and degrade in response to channel or canyon incision, or mass-wasting processes. The timescales over wh…
Eine geochemische Traverse quer zum mittelmiozänen magmatischen Bogen im südlichen Bereich der Zentralen Vulkanischen Z…
Um ein räumliches Bild der Wechselwirkung aufsteigender Magmen mit der verdickten andinen Kruste zu erhalten, wurde im südlichen Bereich der Zentralen Vulkanischen Zone (ZVZ) die …
Provenance und Ausbreitung von Silt am aktiven Plattenrand Kalabriens - Anwendung der Diffusions-Theorie auf Petrograph…
Silt ist die häufigste Sedimentart im exogenen Stoffregime der Erdkruste. Über die Sedimentologie dieses Partikelspektrums liegen vergleichsweise wenige Kenntnisse vor. Am aktiven…
Bergordnung für St. Annaberg 1503
Bergordnung für St. Annaberg vom 5. März 1503. Diese Bergordnung ist eine Ergänzung der Bergordnung von 1499/1500. In 9 Paragraphen werden die Missstände bei der Auszahlung der Au…
Mercury loading within the Selenga River Basin and Lake Baikal, Siberia
Mercury (Hg) loading in Lake Baikal, a UNESCO world heritage site, is growing and poses a serious health concern to the lake’s ecosystem due to the ability of Hg to transform into…
Visualizing the Availability of Temporally Structured Sensor Data
With the development of new sensor technologies and the standardization of sensor data formats, sensor data from different sources becomes available for many applications. A cruci…
A GEO label for the Sensor Web
The GEO label is a visual metadata summary that is designed to improve understandability of geospatial metadata. The amount of sensor data collected via and published in Sensor We…
How do deep-water volcanoes grow?
Deep-water volcanoes are emplaced in water depths >1.0 km and are widespread along continental margins and in ocean basins. Whilst the external morphology of deep-water volcano…
Representative elementary volumes, hysteresis and heterogeneity in multiphase flow from the pore to continuum scale
Representative elementary volumes (REVs) and heterogeneity are key concepts in continuum multiphase flow, yet their manifestation from the pore-scale and associated impacts with t…
Western Desert base maps: Special Research Project 69, Subproject D 1, period 1984 - 1987
The East Oweinat area is located in the south-west part of Egypt and to the south of the New Valley Area. It lies between latitudes 22° - 00' N. and 24° - 00' N. and longitudes 28…
The Community Code Verification Exercise for Simulating Sequences of Earthquakes and Aseismic Slip (SEAS)
Numerical simulations of Sequences of Earthquakes and Aseismic Slip (SEAS) have made great progress over the past decades to address important questions in earthquake physics and …
Strukturierung Eisen-Mangan-haltiger Schlämme durch komplexe dynamische Prozesse: ein Beitrag zur frühdiagenetischen Bi…
Im Rahmen des DFG-Schwerpunktprogrammes "Intraformationale Lagerstättenbildung" wurde die Genese einer gebänderten, ca. 20 cm mächtigen Eisen-Mangan-Ablagerung untersucht, die sic…
An image- and BET-based Monte-Carlo approach to determine mineral accessible surface areas in sandstones
Accessible surface areas (ASAs) of individual rock-forming minerals exert a fundamental control on how minerals react with formation fluids. However, due to lacking adequate quant…
Controls on the development and termination of failed continental rifts: Insights from the crustal structure and riftin…
The mid to lower crust plays an important role in rift initiation and evolution, particularly when large scale sutures and/or terrane boundaries are present. These inherited featu…
Abschlussbericht zu den DFG-Projekten „Geometrie, Chronologie und Dynamik der letzten pleistozänen Vergletscherung des …
Das Ziel der Projekte bestand in einer umfassenden Rekonstruktion der letzten Vergletscherung des Südschwarzwaldes. Dabei stand folgende Frage im Mittelpunkt: „Wann erreichte die …
Dislocation interactions during low-temperature plasticity of olivine strengthen the lithospheric mantle
The strength of the lithosphere is typically modelled based on constitutive equations for steady-state flow. However, models of lithospheric flexure reveal differences in lithosp…
NSB: an expanded and improved database of marine planktonic microfossil data and deep-sea stratigraphy
Thirty years ago, the Neptune Database was created to synthesize microfossil occurrences from the deep-sea drilling record. It has been used in numerous studies by both biologists…
Skillful seasonal prediction of key carbon cycle components: NPP and fire risk
Seasonal forecasts of global CO₂ concentrations rely on the well-documented relationship with the El Niño–Southern Oscillation (ENSO), combined with estimated anthropogenic emissi…
Possible Tectonic Impact of Biosphere
This paper explores the possibility of existence of ultra-deep biosphere (deeper than 10 km under the surface) and the biogenic earthquake hypothesis -- the idea that subsurface m…
Global groundwater sustainability, resources and systems in the Anthropocene
Groundwater is a crucial resource for current and future generations but is not being sustainably used in many parts of the world. The objective of this review is to provide a cle…
Wide-swath altimetric satellite data assimilation with structured-error detrending
For decades now, satellite altimetric observations have been successfully integrated in numerical oceanographic models using data assimilation (DA). So far, sea surface height (SS…
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