Top 10 Eartharxiv Papers Today in Physical Sciences And Mathematics


1.996 Mikeys
#1. A Small Scale Study of the Weathering Rates of Marble Gravestones Dated from 1958-1962
Alan Robert White
Marble is known to weather quicker when exposed to air pollution. This has led to the suggestion that gravestones could be used to study the long term degradation of marble and be used as indicators of past pollution levels. This small scale study examined the weathering rates of a group of marble gravestones of similar age and location. The study found no evidence to suggest that these gravestones could provide accurate or useful information on marble weathering rates or past pollution levels.
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 1
Total Words: 1220
Unqiue Words: 572

1.996 Mikeys
#2. Chronology and phenomenology of the 1982 and 2015 Wolf volcano eruptions, Galápagos Archipelago
Benjamin Bernard, Michael J. Stock, Diego Coppola, Silvana Hidalgo, Marco Bagnardi, Sally Gibson, Stephen Hernandez, Patricio Ramón, Matthew Gleeson
The 1982 and 2015 eruptions are the first at Wolf volcano, Galápagos Archipelago, with eyewitness accounts and satellite imagery. Both eruptions are characterized by a rapid, intense initial phase and multiple eruptive vents leading to the formation of large ‘a‘ā lava fields with scarce pāhoehoe deposits, mostly associated with the waning phases. The 1982 eruption started on 28 August from an intra-caldera vent that produced high lava fountaining, but also occurred from a radial fissure on the SE flank. This eruption lasted for at least 9 days and generated approximately 70E+6 m3 of lava. The 2015 eruption started on 25 May from a circumferential fissure that also produced high lava fountaining and deposited reticulite scoria on the flanks of the volcano. For the first time since monitoring Galápagos eruptions, we observed cryptotephra from the 2015 eruption reaching and depositing in mainland Ecuador, 1400 km away from the source. Lava from the 2015 circumferential vents covered large areas on the SE and E flanks. On 13 June 2015...
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 9
Total Words: 10684
Unqiue Words: 3751

1.992 Mikeys
#3. Sea floor bedforms and their influence on slope accommodation
Vittorio Maselli, David Iacopini, Ben Kneller, Olusoji Taiwo
In deep-water settings, the accommodation space for sediment transported by turbidity flows relates to the difference between the elevation of the depositional surface and its equilibrium profile. As a consequence, accommodation space creation, or disruption, may depend from changes in the physiography of the receiving basin, or changes in the flow properties. In topographically complex slopes, such where salt-withdrawal intra-slope basins occur, three different types of accommodation space have been recognized. Among other parameters, the ratio between flow thickness and depth of the intra-slope basin controls the partial, or full, ponding of the sediment in suspension, and consequently, the lithology distribution within the deposit. On a smaller spatial scale, the behavior of turbidity flows is affected by the topography of the sea floor. Indeed, the presence of large-wavelength bedforms may generate local topographic low compared to the adjacent sea floor that may trap part of the sediment carried by sediment-laden flows, such...
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 4
Total Words: 10379
Unqiue Words: 3237

0.0 Mikeys
#4. The influence of sea-level curves on modeled marine terrace sequences
Gino de Gelder, Julius Jara-Muñoz, Daniel Melnick, David Fernández-Blanco, Hélène Rouby, Kevin Pedoja, Rolando Armijo, Robin Lacassin
Widespread sequences of uplifted marine terraces express multi-scale climatic and tectonic processes, but their analysis is typically biased by the considered sea-level curve. Here we explore the influence of Quaternary sea-level (SL) curves on the geometry of the marine terrace sequence at Xylokastro (Corinth Rift) using a numerical model of sea-cliff erosion. Modeling the young, rapidly uplifting sequence (<240 ka; ~1.5 mm/yr;) allows us to constrain terrace ages, model parameters and best-fitting SL curves. While SL curves based on ages of coastal index point (corals) achieve lower misfits than hydraulic-model based curves at Xylokastro, the latter SL curves are better for modeling coasts that rise slowly (~0.2 mm/yr) over longer timescales (2.6 Ma). Our study emphasizes the importance of eustatic highstand elevations to estimate uplift rates from staircase marine terrace sequences. Accurately modeling such sequences can be crucial in assessing primary climatic and tectonic contributors to Quaternary coastal evolution.
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 8
Total Words: 7913
Unqiue Words: 2672

0.0 Mikeys
#5. Rapid and accurate estimates of streamflow depletion caused by groundwater pumping using analytical depletion functions
Samuel C Zipper, Tom Gleeson, Ben Kerr, Jeanette K Howard, Melissa M Rohde, Jennifer Carah, Julie Zimmerman
Reductions in streamflow due to groundwater pumping (‘streamflow depletion’) can negatively impact water users and aquatic ecosystems, but are challenging to estimate due to the time and expertise required to develop numerical groundwater models often used for groundwater management. Here, we introduce and evaluate analytical depletion functions, which are simpler approaches consisting of (i) stream proximity criteria which determine the stream segments impacted by a well; (ii) a depletion apportionment equation which distributes depletion among stream segments; and (iii) an analytical model to estimate streamflow depletion. We evaluate 50 analytical depletion functions under transient conditions via comparison to an archetypal numerical model. Of the constituent elements, we find that the choice of a depletion apportionment equation has the largest impact on the accuracy of analytical depletion functions, and equations that explicitly consider stream network geometry perform best across several performance metrics. The...
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : [45]
Authors: 7
Total Words: 12733
Unqiue Words: 3099

0.0 Mikeys
#6. Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake
BAO, HAN, Jean-Paul Ampuero, Lingsen Meng, Eric J. Fielding, Cunren Liang, Hui Huang, Tian Feng
Supershear earthquakes with rupture velocity exceeding shear-wave speeds, previously observed in laboratory experiments and large strike-slip events, often have an initial sub-shear stage before they transition to supershear. In this study, integrated geophysical observations of the 2018 Mw 7.5 Palu, Indonesia earthquake, provide robust evidence of an early and persistent supershear rupture speed. Slowness-enhanced back-projection (SEBP) of teleseismic data provides a sharp image of the rupture process, consistently across multiple arrays. The inferred rupture path agrees with the surface rupture trace inferred from the net surface displacement field derived by sub-pixel InSAR image correlation. The SEBP results indicate a sustained rupture velocity of 4.1 km/s from the rupture initiation to the end, despite large fault bends. The persistent supershear speed is further validated by evidence of far-field Rayleigh Mach waves in regional seismograms. The short or absent supershear transition distance can be caused by high initial...
more | pdf
Figures
Tweets
HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl My first first-authored paper. Thanks, @DocTerremoto @EricFielding and Lingsen, for all the support. Feel fortunate to work with and be inspired by you all. https://t.co/d2Dl6QFQs0
bombabelloto: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
IRIS_EPO: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
seis_matters: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
cumulunimbus: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
EricFielding: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
EarthArXiv: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
DocTerremoto: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
kwhudnut: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
patton_cascadia: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
Geo_GIF: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
UiB_Rotevatn: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
RLacassin: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
EQuake_Analysis: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
lucadalzilio: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
fracturedfola: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
rokuwaki: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
sigekok: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
MohseniAref: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
JoseJmdiaz: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
Geo_JChampenois: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
UCLAEPSS: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
sulis_tiyani: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
AmauryVallage: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
structuregeo: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
thea_ragon: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
Jlandaeta116gm1: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
SianiparDimas: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
SianiparDimas: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
SianiparDimas: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
jaytung_earth: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
jianming_kuang: RT @HanBao_UCLA: Early and persistent supershear rupture of the 2018 Mw 7.5 Palu earthquake #preprint @EarthArXiv https://t.co/K6TmUrW3Kl M…
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 7
Total Words: 5793
Unqiue Words: 1937

0.0 Mikeys
#7. The deposition and alteration history of the northeast Syrtis Major layered sulfates
Daven Quinn, Bethany Ehlmann
The ancient stratigraphy on the western margin of the Isidis basin records the history of water on early Mars. Noachian units are overlain by layered, basaltic-composition sedimentary rocks that are enriched in polyhydrated sulfates and capped by more resistant units. The layered sulfates – uniquely exposed at northeast Syrtis Major – comprise a sedimentary sequence up to 600-m thick that has undergone a multi-stage history of deposition, alteration, and erosion. Siliciclastic sediments enriched in polyhydrated sulfates are bedded at m-scale and were deposited on slopes up to 10º, embaying and thinning against pre-existing Noachian highlands around the Isidis basin rim. The layered sulfates were then modified by volume-loss fracturing during diagenesis, and the fractures hosted channelized flow and jarosite mineral precipitation to form resistant ridges upon erosion. The depositional form and diagenetic volume-loss recorded by the layered sulfates suggest deposition in a deepwater basin. After their formation, the layered sulfates...
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 2
Total Words: 25573
Unqiue Words: 6403

0.0 Mikeys
#8. A Simple Model for Deglacial Meltwater Pulses
Alexander Robel
Evidence from radiocarbon dating and complex ice sheet modeling suggests that the fastest rate of sea level rise in Earth's recent history coincided with collapse of the ice saddle between the Laurentide and Cordilleran ice sheets during the last deglaciation. In this study, we derive a simple, two-equation model of two ice sheets intersecting in an ice saddle. We show that two conditions are necessary for producing the acceleration in ice sheet melt associated with meltwater pulses: the positive height-mass balance feedback and an ice saddle geometry. The amplitude and timing of meltwater pulses is sensitively dependent on the rate of climate warming during deglaciation and the relative size of ice sheets undergoing deglaciation. We discuss how simulations of meltwater pulses can be improved and the prospect for meltwater pulses under continued climate warming.
more | pdf
Figures
None.
Tweets
iceclimate: A final postscript on this thread: our paper on meltwater pulses is now available as an open-access post-print @EarthArXiv (9/7) https://t.co/h2zJkzV0FE
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 1
Total Words: 6935
Unqiue Words: 2318

0.0 Mikeys
#9. U–Pb dating of mineral deposits: From age constraints to ore-forming processes
Cyril Chelle-Michou, Urs Schaltegger
The knowledge of the timing and duration of ore-forming processes are perhaps one of the most desirable pieces of information that geologists require to draw a complete picture of the deposit and to put its genesis into a coherent regional or even global geological framework. In many cases, it represents an essential parameter for establishing detailed genetic models, and can critically impact on exploration strategies. This necessarily requires a reliable, precise and accurate geochronometer. This chapter reviews the basics of the U–Pb geochronology and the most commonly used dating techniques and minerals while pointing out their respective advantages, weaknesses and potential pitfalls. Through a series of case studies, we illustrate the various usages of U–Pb dating for the study of mineral deposits. Admittedly, U–Pb geochronology is a field that is strongly biased toward the use of zircon and this chapter is not an exception. Nevertheless, we will also shed light on U–Pb dating applied to less commonly encountered and dated minerals.
more | pdf
Figures
Tweets
CyrilChelleM: Want to know how to use U-Pb dating (and not only of zircon) to study mineral deposits. Checks our new chapter by @schalteg and I. https://t.co/nCNhP0xG99 via @OSFramework
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 2
Total Words: 27329
Unqiue Words: 7315

0.0 Mikeys
#10. Slope-fan depositional architecture from high-resolution forward stratigraphic models
Nicolas Hawie, Jacob Covault, Dallas Dunlap, Zoltan Sylvester
Submarine fans in tectonically active continental-slope basins are targets of petroleum exploration and production. These slope fans commonly comprise compensationally stacked sandy and muddy architectural elements, including mass-transport deposits, weakly confined to distributary channel-and-lobe deposits, and leveed-channel deposits. The lateral continuity and vertical connectivity of these architectural elements are important uncertainties in reservoir characterization that influence fluid-flow behavior during hydrocarbon production. Here, we use a simple forward stratigraphic model to simulate the stratigraphic patterns and illuminate the likely distribution of fine-scale, sub-seismic heterogeneity in a slope fan. We used published seismic-reflection horizons from the tectonically active Columbus basin, offshore Trinidad, to define the top and base of a Pleistocene submarine fan. We then simulated the stratigraphic evolution of the slope fan with a series of DionisosFlow forward stratigraphic models. All variables were kept...
more | pdf
Figures
Tweets
Github
None.
Youtube
None.
Other stats
Sample Sizes : None.
Authors: 4
Total Words: 8306
Unqiue Words: 2978

About

Assert is a website where the best academic papers on arXiv (computer science, math, physics), bioRxiv (biology), BITSS (reproducibility), EarthArXiv (earth science), engrXiv (engineering), LawArXiv (law), PsyArXiv (psychology), SocArXiv (social science), and SportRxiv (sport research) bubble to the top each day.

Papers are scored (in real-time) based on how verifiable they are (as determined by their Github repos) and how interesting they are (based on Twitter).

To see top papers, follow us on twitter @assertpub_ (arXiv), @assert_pub (bioRxiv), and @assertpub_dev (everything else).

To see beautiful figures extracted from papers, follow us on Instagram.

Tracking 56,474 papers.

Search
Sort results based on if they are interesting or reproducible.
Interesting
Reproducible
Feedback
Online
Stats
Tracking 56,474 papers.