Home > Research > Publications & Outputs > Rethinking Lunar Mare Basalt Regolith Formation

Electronic data

  • Protolith-accepted

    Rights statement: An edited version of this paper was published by AGU. Copyright 2020 American Geophysical Union. Head, J. W., & Wilson, L. (2020). Rethinking lunar mare basalt regolith formation: New concepts of lava flow protolith and evolution of regolith thickness and internal structure.. Geophysical Research Letters, 47, e2020GL088334. https://doi.org/10.1029/2020GL088334. To view the published open abstract, go to http://dx.doi.org and enter the DOI.

    Accepted author manuscript, 0.99 MB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

Links

Text available via DOI:

View graph of relations

Rethinking Lunar Mare Basalt Regolith Formation: New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

Standard

Rethinking Lunar Mare Basalt Regolith Formation : New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure . / Head, J.W.; Wilson, L.

In: Geophysical Research Letters, Vol. 47, No. 20, e2020GL088334, 28.10.2020.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{4afeabe4ce074f34a1217e9b6b5cbb95,
title = "Rethinking Lunar Mare Basalt Regolith Formation: New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure ",
abstract = "Lunar mare regolith is traditionally thought to have formed by impact bombardment of newly emplaced coherent solidified basaltic lava. We use new models for initial emplacement of basalt magma to predict and map out thicknesses, surface topographies and internal structures of the fresh lava flows, and pyroclastic deposits that form the lunar mare regolith parent rock, or protolith. The range of basaltic eruption types produce widely varying initial conditions for regolith protolith, including (1) autoregolith, a fragmental meter-thick surface deposit that forms upon eruption and mimics impact-generated regolith in physical properties, (2) lava flows with significant near-surface vesicularity and macroporosity, (3) magmatic foams, and (4) dense, vesicle-poor flows. Each protolith has important implications for the subsequent growth, maturation, and regional variability of regolith deposits, suggesting wide spatial variations in the properties and thickness of regolith of similar age. Regolith may thus provide key insights into mare basalt protolith and its mode of emplacement.",
keywords = "autoregolith, lunar, mare basalt, protolith, pyroclastic, regolith, Deposits, Moon, Basaltic eruptions, Initial conditions, Internal structure, Macro-porosity, Pyroclastic deposits, Regional variability, Spatial variations, Surface deposits, Basalt, basalt, lava flow, physical property, pyroclastic deposit, volcanic eruption",
author = "J.W. Head and L. Wilson",
note = "An edited version of this paper was published by AGU. Copyright 2020 American Geophysical Union. Head, J. W., & Wilson, L. (2020). Rethinking lunar mare basalt regolith formation: New concepts of lava flow protolith and evolution of regolith thickness and internal structure.. Geophysical Research Letters, 47, e2020GL088334. https://doi.org/10.1029/2020GL088334. To view the published open abstract, go to http://dx.doi.org and enter the DOI.",
year = "2020",
month = oct,
day = "28",
doi = "10.1029/2020GL088334",
language = "English",
volume = "47",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "20",

}

RIS

TY - JOUR

T1 - Rethinking Lunar Mare Basalt Regolith Formation

T2 - New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure

AU - Head, J.W.

AU - Wilson, L.

N1 - An edited version of this paper was published by AGU. Copyright 2020 American Geophysical Union. Head, J. W., & Wilson, L. (2020). Rethinking lunar mare basalt regolith formation: New concepts of lava flow protolith and evolution of regolith thickness and internal structure.. Geophysical Research Letters, 47, e2020GL088334. https://doi.org/10.1029/2020GL088334. To view the published open abstract, go to http://dx.doi.org and enter the DOI.

PY - 2020/10/28

Y1 - 2020/10/28

N2 - Lunar mare regolith is traditionally thought to have formed by impact bombardment of newly emplaced coherent solidified basaltic lava. We use new models for initial emplacement of basalt magma to predict and map out thicknesses, surface topographies and internal structures of the fresh lava flows, and pyroclastic deposits that form the lunar mare regolith parent rock, or protolith. The range of basaltic eruption types produce widely varying initial conditions for regolith protolith, including (1) autoregolith, a fragmental meter-thick surface deposit that forms upon eruption and mimics impact-generated regolith in physical properties, (2) lava flows with significant near-surface vesicularity and macroporosity, (3) magmatic foams, and (4) dense, vesicle-poor flows. Each protolith has important implications for the subsequent growth, maturation, and regional variability of regolith deposits, suggesting wide spatial variations in the properties and thickness of regolith of similar age. Regolith may thus provide key insights into mare basalt protolith and its mode of emplacement.

AB - Lunar mare regolith is traditionally thought to have formed by impact bombardment of newly emplaced coherent solidified basaltic lava. We use new models for initial emplacement of basalt magma to predict and map out thicknesses, surface topographies and internal structures of the fresh lava flows, and pyroclastic deposits that form the lunar mare regolith parent rock, or protolith. The range of basaltic eruption types produce widely varying initial conditions for regolith protolith, including (1) autoregolith, a fragmental meter-thick surface deposit that forms upon eruption and mimics impact-generated regolith in physical properties, (2) lava flows with significant near-surface vesicularity and macroporosity, (3) magmatic foams, and (4) dense, vesicle-poor flows. Each protolith has important implications for the subsequent growth, maturation, and regional variability of regolith deposits, suggesting wide spatial variations in the properties and thickness of regolith of similar age. Regolith may thus provide key insights into mare basalt protolith and its mode of emplacement.

KW - autoregolith

KW - lunar

KW - mare basalt

KW - protolith

KW - pyroclastic

KW - regolith

KW - Deposits

KW - Moon

KW - Basaltic eruptions

KW - Initial conditions

KW - Internal structure

KW - Macro-porosity

KW - Pyroclastic deposits

KW - Regional variability

KW - Spatial variations

KW - Surface deposits

KW - Basalt

KW - basalt

KW - lava flow

KW - physical property

KW - pyroclastic deposit

KW - volcanic eruption

U2 - 10.1029/2020GL088334

DO - 10.1029/2020GL088334

M3 - Journal article

VL - 47

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 20

M1 - e2020GL088334

ER -