Preprints
There are 4717 Preprints listed.
A diffuse interface method for earthquake rupture dynamics based on a phase-field model
Published: 2023-06-01
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics
In traditional modeling approaches, earthquakes are often depicted as displacement discontinuities across zero-thickness surfaces embedded within a linear elastodynamic continuum. This simplification, however, overlooks the intricate nature of natural fault zones and may fail to capture key physical phenomena integral to fault processes. Here, we propose a diffuse interface description for [...]
Full vector inversion of magnetic microscopy images using Euler deconvolution as a priori information
Published: 2023-06-01
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics
Paleomagnetic data are usually obtained from whole cylindric samples, where the signal results from the sum of magnetic moments from hundreds of thousands to millions of magnetic particles within the sample volume. This usually includes both stable and unstable remanence carriers. Recently, magnetic microscopy techniques allowed the investigation of individual grains by directly imaging their [...]
The Impact of the Three-Dimensional Structure of a Subduction Zone on Time-dependent Crustal Deformation Measured by HR-GNSS
Published: 2023-06-01
Subjects: Physical Sciences and Mathematics
Accurately modeling time-dependent coseismic crustal deformation as observed on high-rate Global Navigation Satellite System (HR-GNSS) lends insight into earthquake source processes and improves local earthquake and tsunami early warning algorithms. Currently, time-dependent crustal deformation modeling relies most frequently on simplified 1D radially symmetric Earth models. However, for shallow [...]
Subduction initiation triggered the Caribbean Large Igneous Province
Published: 2023-06-01
Subjects: Physical Sciences and Mathematics
While subduction is known to be the primary driving force of plate tectonics, the mechanisms leading to the formation of new subduction zones remain debated. Here, we use large scale D geodynamic numerical models to simulate the evolution of the Cretaceous Caribbean region, a locus where the eastern Pacific subduction system triggered the formation of a new subduction zone eventually reaching the [...]
Causes of Late Cretaceous subduction termination below South China and Borneo: Was the Proto-South China Sea underlain by an oceanic plateau?
Published: 2023-05-31
Subjects: Earth Sciences
The South China, Indochina, and Borneo margins surrounding the South China Sea contain long-lived arcs that became inactive at approximately 85 Ma, even though an embayment of oceanic crust (the ‘Proto-South China Sea’) remained in the intervening region. This oceanic crust eventually subducted in the Cenozoic below Borneo and the Cagayan arc, while the modern South China Sea opened in its wake. [...]
A critical reappraisal of paleomagnetic evidence for Philippine Sea Plate rotation
Published: 2023-05-31
Subjects: Earth Sciences
The kinematic history of the Philippine Sea Plate (PSP) is crucial for interpreting its geological record related to subduction initiation processes and the paleogeography of the junction between the Paleo-Pacific and Tethyan oceanic realms. However, reconstructing PSP’s kinematic history is difficult because the plate has been surrounded by subduction zones for most of its history. In absence of [...]
Listening to Manchester: Using citizen science Raspberry Shake seismometers to quantify road traffic
Published: 2023-05-31
Subjects: Civil and Environmental Engineering, Earth Sciences, Environmental Public Health, Environmental Sciences, Environmental Studies, Human Geography
Road traffic is a major contributor to greenhouse gases in our cities. This study has been designed to test whether low-cost citizen science seismometers (Raspberry Shakes) can be used to quantify temporal and spatial variations in road traffic. I used a network of seismometers installed around Greater Manchester to record signals in the frequency range 1-50 Hz. Data were processed using the open [...]
Decompression and Fracturing Caused by Magmatically Induced Thermal Stresses
Published: 2023-05-31
Subjects: Earth Sciences, Physical Sciences and Mathematics
Studies of host rock deformation around magmatic intrusions usually focus on the development of stresses directly related to the intrusion process. This is done either by considering an inflating region that represents the intruding body, or by considering multiphase deformation. Thermal processes, especially volume changes caused by thermal expansion are typically ignored. We show that thermal [...]
Discovery of a 15-kilometer-wide impact crater candidate in western Saudi Arabia
Published: 2023-05-31
Subjects: Earth Sciences, Geology, Physical Sciences and Mathematics, Planetary Geology
There are few reports on impact craters in Saudi Arabia. This paper aims to fill a gap in the literature in this area. Using satellite imaging, a circular structure with a diameter of approximately 15 kilometers was detected on the edge of Harrat Rahat volcanic field in western Saudi Arabia. Fieldwork showed that the circular structure is a newly-discovered comet impact crater candidate, this [...]
Comment on ‘The magmatic architecture and evolution of the Chang’e-5 lunar basalts’ Penny E. Wieser1, Christy Till2, Adam Kent3, Matthew Gleeson1
Published: 2023-05-31
Subjects: Earth Sciences, Geology, Physical Sciences and Mathematics, Volcanology
Luo et al.1 present exciting new data on lunar basalt samples erupted at ~2 Ga, and brought to Earth by the Chang’e-5 (CE-5) mission. These samples offer important new opportunities to understand lunar magmatic systems. Luo et al.1 use Clinopyroxene-Liquid (Cpx-Liq) thermobarometry and pMELTS modelling of mineral compositions to determine the pressures (P) and temperatures (T) of magma storage on [...]
Lidar-based MaxEnt models to support conservation planning for endangered Red-cockaded Woodpeckers in urbanizing environments
Published: 2023-05-28
Subjects: Ecology and Evolutionary Biology, Natural Resources and Conservation, Remote Sensing, Spatial Science
Sensitive and intensively managed species require carefully thought-out management plans to promote and maintain specific habitat conditions. Urban features and land-use change must be assimilated into these habitat management plans, as they become increasingly present globally. As a case study, several MaxEnt species distribution models were developed that could enable habitat management efforts [...]
Impacts of Carbonate Buffering on Atmospheric Equilibration of CO2, δ13CDIC, and Δ14CDIC in Rivers and Streams
Published: 2023-05-28
Subjects: Biogeochemistry, Earth Sciences, Environmental Sciences, Hydrology
Rivers and streams play an important role within the global carbon cycle, in part through emissions of CO2 to the atmosphere. However, the sources of this CO2 and their spatiotemporal variability are difficult to constrain. Recent work has highlighted the role of carbonate buffering reactions that may serve as a source of CO2 in high alkalinity systems. In this study, we seek to develop a [...]
Formulating and Solving the Data-Consistent Geophysical Inverse Problem for Subsurface Modeling Applications
Published: 2023-05-27
Subjects: Earth Sciences, Geology, Geophysics and Seismology, Probability
Today, most probabilistic geophysical inverse problems are formulated using one of two methods: (1) conditional probability and Bayes’ Theorem, or (2) Tarantola’s theory of intersecting probability densities. More recently, a third inverse problem formulation based on pushforward probability measures was proposed, termed “data-consistent inversion”. Many practical problems can be cast into any of [...]
Climate change, concern, and children: A systematic review exploring the intersection of climate change, mental health, and reproductive decision-making
Published: 2023-05-27
Subjects: Public Health
The impact of climate change on reproductive decision-making is becoming a significant issue, with anecdotal evidence indicating a growing number of people factoring their concerns about climate change into their childbearing plans. Although empirical research has explored climate change and its relationship to mental health, as well as the motivations behind reproductive decision-making [...]
Assessment of the Relationship between Passages of Tropical Cyclones and their Origins of Genesis for Managing Risk of the Coast of Bangladesh
Published: 2023-05-26
Subjects: Physical Sciences and Mathematics
To understand risk from upcoming tropical cyclones (TCs) of Bangladesh, Impact of Indian Ocean Dipole (IOD) on origins of TCs genesis historically over Bay of Bengal (BoB) should be considered. So, the correlation between Dipole Mode Indexes (DMI) and frequencies of TCs generated in BoB has been investigated for (1877-2018) era. Changes in decade-wise mean DMI have been found linearly correlated [...]