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Geophysical Sciences	158 records found 1 - 25	Search took 0.27 seconds.

1.	Multiple Files Deep-CO2-release-and-the-carbon-budget-of-the-central-Apennines-modulated-by-geodynamics Deep CO<sub>2</sub> release and the carbon budget of the central Apennines modulated by geodynamics Erlanger, Erica ; Bufe, Aaron ; Paris, Guillaume ; D’Angeli, Ilenia ; Pisani, Luca ; Kemeny, [...] Recent studies increasingly recognize the importance of critical-zone weathering during mountain building for long-term CO<sub>2</sub> drawdown and release. H [...] 19 April 2024 \| Geophysical Sciences \| Article \| Detailed record - Similar records
2.	Multiple Files Carbonate-Metal-Reactions-in-the-Lower-Mantle Carbonate-Metal Reactions in the Lower Mantle Davis, Anne H. ; Chidester, Bethany A. ; Greenberg, Eran ; Prakapenka, Vitali B. ; Campbell,[...] Carbonates are important carbon-bearing phases in the mantle. While their role in upper mantle petrologic processes has been well studied, their effect on phase relations [...] 25 March 2024 \| Geophysical Sciences \| Article \| Detailed record - Similar records
3.	Multiple Files Quantifying-the-impact-of-sample-instrument-and-data-processing Quantifying the impact of sample, instrument, and data processing on biological signatures in modern and fossil tissues detected with Raman spect[...] Wiemann, Jasmina ; Heck, Philipp R. Raman spectroscopy is a popular tool for characterizing complex biological materials and their geological remains. Ordination methods, such as principal component analysi [...] 20 March 2024 \| Geophysical Sciences \| Article \| Detailed record - Similar records
4.	Multiple Files kemeny-et-al-2024-balance-and-imbalance-in-biogeochemical-cycles-reflect-the-operation-of-closed-exchange-and-open-sets Balance and imbalance in biogeochemical cycles reflect the operation of closed, exchange, and open sets Kemeny, Preston Cosslett ; Torres, Mark A. ; Fischer, Woodward W. ; Blättler, Clara L. Biogeochemical reactions modulate the chemical composition of the oceans and atmosphere, providing feedbacks that sustain planetary habitability over geological time. Her [...] 13 March 2024 \| Geophysical Sciences \| Article \| Detailed record - Similar records
5.	Multiple Files Integrating Molluscan Dead-Shell Assemblages with Long-Term Biological Monitoring: Archives of Spatio-Temporal Gradients in Puget Sound, Southern[...] Kokesh, Broc Stephen ‘Live-dead comparison’ refers to the measurement of compositional fidelity between living communities and co-occurring accumulations of dead skeletal material (time-a [...] 2024-03 \| Geophysical Sciences \| Dissertation \| Detailed record - Similar records
6.	Multiple Files sciadv.adk5489 Impact-induced initiation of Snowball Earth: A model study Fu, Minmin ; Abbot, Dorian S. ; Koeberl, Christian ; Federov, Alexey During the Neoproterozoic and Paleoproterozoic eras, geological evidence points to several “Snowball Earth” episodes when most of Earth’s surface was covered in ice [...] 09 February 2024 \| Geophysical Sciences \| Article \| Detailed record - Similar records
7.	Multiple Files sciadv.abb7403 Strong local, not global, controls on marine pyrite sulfur isotopes Pasquier, V. ; Bryant, R. N. ; Fike, D. A. ; Halevy, I. Understanding variation in the sulfur isotopic composition of sedimentary pyrite (δ<sup>34</sup>Spyr) is motivated by the key role of sulfur biogeochemistry [...] 26 February 2021 \| Geophysical Sciences \| Article \| Detailed record - Similar records
8.	Multiple Files sciadv.ade2067 Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2 Kawasaki, Noriyuki ; Nagashima, Kazuhide ; Sakamoto, Naoya ; Matsumoto, Toru ; Bajo, Ken-Ich[...] The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and m [...] 16 December 2022 \| Geophysical Sciences \| Article \| Detailed record - Similar records
9.	Multiple Files sciadv.aao5928 Oxygen isotopic evidence for accretion of Earth's water before a high-energy Moon-forming giant impact Greenwood, Richard C. ; Barrat, Jean-Alix ; Miller, Martin F. ; Anand, Mahesh ; Dauphas, Nic[...] The Earth-Moon system likely formed as a result of a collision between two large planetary objects. Debate about their relative masses, the impact energy involved, and th [...] 28 March 2018 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
10.	Multiple Files sciadv.aax4184 An extraterrestrial trigger for the mid-Ordovician ice age: Dust from the breakup of the L-chondrite parent body Schmitz, Birger ; Farley, Kenneth A. ; Goderis, Steven ; Heck, Philipp R. ; Bergström, Stig[...] The breakup of the L-chondrite parent body in the asteroid belt 466 million years (Ma) ago still delivers almost a third of all meteorites falling on Earth. Our new extra [...] 18 September 2019 \| Geophysical Sciences \| Article \| Detailed record - Similar records
11.	Multiple Files sciadv.abf6222 Survival of presolar <i>p</i>-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusions Charlier, Bruce L.A. ; Tissot, François L.H. ; Vollstaedt, Hauke ; Dauphas, Nicolas ; Wilso[...] The <sup>87</sup>Rb-<sup>87</sup>Sr radiochronometer provides key insights into the timing of volatile element depletion in planetary bodies, yet [...] 09 July 2021 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
12.	Multiple Files sciadv.adi7048 Water circulation in Ryugu asteroid affected the distribution of nucleosynthetic isotope anomalies in returned sample Yokoyama, Tetsuya ; Wadhwa, Meenakshi ; Iizuka, Tsuyoshi ; Rai, Vinai ; Gautam, Ikshu ; Hibiya,[...] Studies of material returned from Cb asteroid Ryugu have revealed considerable mineralogical and chemical heterogeneity, stemming primarily from brecciation and aqueous a [...] 08 November 2023 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
13.	Multiple Files sciadv.abc9959 Titanium isotopes constrain a magmatic transition at the Hadean-Archean boundary in the Acasta Gneiss Complex Aarons, Sarah M. ; Reimink, Jesse R. ; Greber, Nicolas D. ; Heard, Andy W. ; Zhang, Zhe ; Dauph[...] Plate subduction greatly influences the physical and chemical characteristics of Earth's surface and deep interior, yet the timing of its initiation is debated because of [...] 09 December 2020 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
14.	Multiple Files sciadv.aba1303 Meteorite evidence for partial differentiation and protracted accretion of planetesimals Maurel, Clara ; Bryson, James F.J. ; Lyons, Richard J. ; Ball, Matthew R. ; Chopdekar, Rajes[...] Modern meteorite classification schemes assume that no single planetary body could be source of both unmelted (chondritic) and melted (achondritic) meteorites. This dicho [...] 24 July 2020 \| Geophysical Sciences \| Article \| Detailed record - Similar records
15.	Multiple Files sciadv.aar6692 Branching geometry of valley networks on mars and earth and its implications for early martian climate Seybold, Hansjoerg J. ; Kite, Edwin ; Kirchner, James W. Mars’ surface bears the imprint of valley networks formed billions of years ago. Whether these networks were formed by groundwater sapping, ice melt, or fluvial runoff [...] 27 June 2018 \| Geophysical Sciences \| Article \| Detailed record - Similar records
16.	Multiple Files sciadv.add8141 Ryugu’s nucleosynthetic heritage from the outskirts of the Solar System Hopp, Timo ; Dauphas, Nicolas ; Abe, Yoshinari ; Aléon, Jérôme ; Alexander, Conel M. O'D. ; [...] Little is known about the origin of the spectral diversity of asteroids and what it says about conditions in the protoplanetary disk. Here, we show that samples returned [...] 20 October 2022 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
17.	Multiple Files sciadv.1501400 Origin of uranium isotope variations in early solar nebula condensates Tissot, François L.H. ; Dauphas, Nicolas ; Grossman, Lawrence High-temperature condensates found in meteorites display uranium isotopic variations (235U/238U) that complicate dating the solar system's formation and whose origin rema [...] 04 March 2016 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
18.	PDF sciadv.1600983 Snowball Earth climate dynamics and Cryogenian geology-geobiology Hoffman, Paul F. ; Abbot, Dorian S. ; Ashkenazy, Yosef ; Benn, Douglas I. ; Brocks, Jochen J[...] Geological evidence indicates that grounded ice sheets reached sea level at all latitudes during two long-lived Cryogenian (58 and ≥5 My) glaciations. Combined uranium- [...] 08 November 2017 \| Geophysical Sciences \| Article \| Detailed record - Similar records
19.	Multiple Files sciadv.abj0108 Reconciling evidence of oxidative weathering and atmospheric anoxia on Archean Earth Johnson, Aleisha C. ; Ostrander, Chadlin M. ; Romaniello, Stephen J. ; Reinhard, Christop[...] Evidence continues to emerge for the production and low-level accumulation of molecular oxygen (O<sub>2</sub>) at Earth's surface before the Great Oxidation E [...] 29 September 2021 \| Geophysical Sciences \| Article \| Detailed record - Similar records
20.	Multiple Files sciadv.1602365 Early formation of the Moon 4.51 billion years ago Barboni, Melanie ; Boehnke, Patrick ; Keller, Brenhin ; Kohl, Issaku E. ; Schoene, Blair ; Youn[...] Establishing the age of the Moon is critical to understanding solar system evolution and the formation of rocky planets, including Earth. However, despite its importance, [...] 11 January 2017 \| Geophysical Sciences \| Article \| Detailed record - Similar records
21.	Multiple Files sciadv.abc2962 Heating events in the nascent solar system recorded by rare earth element isotopic fractionation in refractory inclusions Hu, J. Y. ; Dauphas, N. ; Tissot, F. L. H. ; Yokochi, R. ; Ireland, T. J. ; Zhang, Z. ; Davis, A. [...] Equilibrium condensation of solar gas is often invoked to explain the abundance of refractory elements in planets and meteorites. This is partly motivated, by the observa [...] 06 January 2021 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
22.	Multiple Files sciadv.abc2962 Heating events in the nascent solar system recorded by rare earth element isotopic fractionation in refractory inclusions Hu, J. Y. ; Dauphas, N. ; Tissot, F. L. H. ; Yokochi, R. ; Ireland, T. J. ; Zhang, Z. ; Davis, A. [...] Equilibrium condensation of solar gas is often invoked to explain the abundance of refractory elements in planets and meteorites. This is partly motivated, by the observa [...] 07 January 2022 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
23.	Multiple Files sciadv.1601107 Kinematics and dynamics of the east pacific rise linked to a stable, deep-mantle upwelling Rowley, David B. ; Forte, Alessandro M. ; Rowan, Christopher J. ; Glišović, Petar ; Moucha[...] Earth’s tectonic plates are generally considered to be driven largely by negative buoyancy associated with subduction of oceanic lithosphere. In this context, mid-ocean [...] 23 December 2016 \| Geophysical Sciences \| Article \| Detailed record - Similar records
24.	Multiple Files sciadv.abl3929 Imprint of chondrule formation on the K and Rb isotopic compositions of carbonaceous meteorites Nie, Nicole X. ; Chen, Xin-Yang ; Hopp, Timo ; Hu, Justin Y. ; Zhang, Zhe J. ; Teng, Fang-Zhen ; S[...] Chondrites display isotopic variations for moderately volatile elements, the origin of which is uncertain and could have involved evaporation/condensation processes in th [...] 01 December 2021 \| Enrico Fermi Institute; Geophysical Sciences \| Article \| Detailed record - Similar records
25.	Multiple Files sciadv.abd3632 Earth’s carbon deficit caused by early loss through irreversible sublimation Li, J. ; Bergin, E. A. ; Blake, G. A. ; Ciesla, F. J. ; Hirschmann, M. M. Carbon is an essential element for life, but its behavior during Earth’s accretion is not well understood. Carbonaceous grains in meteoritic and cometary materials sugg [...] 02 April 2021 \| Geophysical Sciences \| Article \| Detailed record - Similar records

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Geophysical Sciences

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