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- Publisher Website: 10.1029/2020GL091551
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Article: Precipitation‐Driven Pedogenic Weathering of Volcaniclastics on Early Mars
Title | Precipitation‐Driven Pedogenic Weathering of Volcaniclastics on Early Mars |
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Authors | |
Keywords | clay minerals climate Mars mineralogy weathering |
Issue Date | 2021 |
Publisher | American Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/19448007 |
Citation | Geophysical Research Letters, 2021, v. 48 n. 5, p. article no. e2020GL091551 How to Cite? |
Abstract | Compositional stratigraphy, generally composed of Al-rich clay minerals overlying Fe/Mg-rich clay minerals, is observed in many locations on Mars. Here we describe the occurrence of such mineralogical stratigraphy in settings where the protoliths are almost certainly pyroclastic materials. One such example includes altered rocks high on the summit and flanks of explosive volcanoes in Thaumasia Planum. These clay-bearing deposits are most consistent with precipitation-driven weathering of ash deposits. Considering explosive volcanism was pervasive in the Noachian, the early sedimentary record of Mars in some locations is likely dominated by glassy, fragmented, porous, chemically reactive materials with highly specific surface area. These pyroclastic deposits were potentially a critical geological component linking clay minerals to elements of Mars’ climate, weathering, and sedimentary puzzle. |
Persistent Identifier | http://hdl.handle.net/10722/305317 |
ISSN | 2021 Impact Factor: 5.576 2020 SCImago Journal Rankings: 2.007 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | YE, B | - |
dc.contributor.author | Michalski, JR | - |
dc.date.accessioned | 2021-10-20T10:07:43Z | - |
dc.date.available | 2021-10-20T10:07:43Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Geophysical Research Letters, 2021, v. 48 n. 5, p. article no. e2020GL091551 | - |
dc.identifier.issn | 0094-8276 | - |
dc.identifier.uri | http://hdl.handle.net/10722/305317 | - |
dc.description.abstract | Compositional stratigraphy, generally composed of Al-rich clay minerals overlying Fe/Mg-rich clay minerals, is observed in many locations on Mars. Here we describe the occurrence of such mineralogical stratigraphy in settings where the protoliths are almost certainly pyroclastic materials. One such example includes altered rocks high on the summit and flanks of explosive volcanoes in Thaumasia Planum. These clay-bearing deposits are most consistent with precipitation-driven weathering of ash deposits. Considering explosive volcanism was pervasive in the Noachian, the early sedimentary record of Mars in some locations is likely dominated by glassy, fragmented, porous, chemically reactive materials with highly specific surface area. These pyroclastic deposits were potentially a critical geological component linking clay minerals to elements of Mars’ climate, weathering, and sedimentary puzzle. | - |
dc.language | eng | - |
dc.publisher | American Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/19448007 | - |
dc.relation.ispartof | Geophysical Research Letters | - |
dc.rights | Geophysical Research Letters. Copyright © American Geophysical Union. | - |
dc.rights | ©[2021]. American Geophysical Union. All Rights Reserved. This article is available at https://doi.org/10.1029/2020GL091551 | - |
dc.subject | clay minerals | - |
dc.subject | climate | - |
dc.subject | Mars | - |
dc.subject | mineralogy | - |
dc.subject | weathering | - |
dc.title | Precipitation‐Driven Pedogenic Weathering of Volcaniclastics on Early Mars | - |
dc.type | Article | - |
dc.identifier.email | Michalski, JR: jmichal@hku.hk | - |
dc.identifier.authority | Michalski, JR=rp02225 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1029/2020GL091551 | - |
dc.identifier.scopus | eid_2-s2.0-85102270919 | - |
dc.identifier.hkuros | 327260 | - |
dc.identifier.volume | 48 | - |
dc.identifier.issue | 5 | - |
dc.identifier.spage | article no. e2020GL091551 | - |
dc.identifier.epage | article no. e2020GL091551 | - |
dc.identifier.isi | WOS:000627892100069 | - |
dc.publisher.place | United States | - |