Learning to read the chemistry of regolith to understand the critical zone

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

The base of the Critical Zone includes the mantle of altered soil and rockregoliththat changes in response to chemical, physical, and biological processes occurring at Earth's surface. These processes are recorded in the chemistry of the regolith, and this long-term record can often be deciphered. For example, on eroding ridgetops where flows are generally downward for water and upward for earth material, element concentrations vary with depth to constitute depletion, addition, depletion-enrichment, and biogenic profiles. Models can be used to explore the records of mineral dissolution, atmospheric input, coupled dissolution-precipitation, and biolifting documented in these profiles. These models enable interpretation of the effects of time, climate, rates of erosion, and human and other biotic impacts on the profile patterns. By testing quantitative models against the long-term record of information in regolith, we will learn to project changes arising from human and natural perturbations of the Critical Zone.

Original languageEnglish (US)
Pages (from-to)387-416
Number of pages30
JournalAnnual Review of Earth and Planetary Sciences
Volume39
DOIs
StatePublished - May 30 2011

Fingerprint

regolith
learning
chemistry
dissolving
depletion
profiles
dissolution
Earth surface
chemical process
biological processes
climate
erosion
soils
Earth mantle
minerals
perturbation
mantle
mineral
water
soil

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

@article{e29538d33d1948528b6a2f9bec4ea107,
title = "Learning to read the chemistry of regolith to understand the critical zone",
abstract = "The base of the Critical Zone includes the mantle of altered soil and rockregoliththat changes in response to chemical, physical, and biological processes occurring at Earth's surface. These processes are recorded in the chemistry of the regolith, and this long-term record can often be deciphered. For example, on eroding ridgetops where flows are generally downward for water and upward for earth material, element concentrations vary with depth to constitute depletion, addition, depletion-enrichment, and biogenic profiles. Models can be used to explore the records of mineral dissolution, atmospheric input, coupled dissolution-precipitation, and biolifting documented in these profiles. These models enable interpretation of the effects of time, climate, rates of erosion, and human and other biotic impacts on the profile patterns. By testing quantitative models against the long-term record of information in regolith, we will learn to project changes arising from human and natural perturbations of the Critical Zone.",
author = "Brantley, {Susan Louise} and Lebedeva, {Marina Ivanovna}",
year = "2011",
month = "5",
day = "30",
doi = "10.1146/annurev-earth-040809-152321",
language = "English (US)",
volume = "39",
pages = "387--416",
journal = "Annual Review of Earth and Planetary Sciences",
issn = "0084-6597",
publisher = "Annual Reviews Inc.",

}

TY - JOUR

T1 - Learning to read the chemistry of regolith to understand the critical zone

AU - Brantley, Susan Louise

AU - Lebedeva, Marina Ivanovna

PY - 2011/5/30

Y1 - 2011/5/30

N2 - The base of the Critical Zone includes the mantle of altered soil and rockregoliththat changes in response to chemical, physical, and biological processes occurring at Earth's surface. These processes are recorded in the chemistry of the regolith, and this long-term record can often be deciphered. For example, on eroding ridgetops where flows are generally downward for water and upward for earth material, element concentrations vary with depth to constitute depletion, addition, depletion-enrichment, and biogenic profiles. Models can be used to explore the records of mineral dissolution, atmospheric input, coupled dissolution-precipitation, and biolifting documented in these profiles. These models enable interpretation of the effects of time, climate, rates of erosion, and human and other biotic impacts on the profile patterns. By testing quantitative models against the long-term record of information in regolith, we will learn to project changes arising from human and natural perturbations of the Critical Zone.

AB - The base of the Critical Zone includes the mantle of altered soil and rockregoliththat changes in response to chemical, physical, and biological processes occurring at Earth's surface. These processes are recorded in the chemistry of the regolith, and this long-term record can often be deciphered. For example, on eroding ridgetops where flows are generally downward for water and upward for earth material, element concentrations vary with depth to constitute depletion, addition, depletion-enrichment, and biogenic profiles. Models can be used to explore the records of mineral dissolution, atmospheric input, coupled dissolution-precipitation, and biolifting documented in these profiles. These models enable interpretation of the effects of time, climate, rates of erosion, and human and other biotic impacts on the profile patterns. By testing quantitative models against the long-term record of information in regolith, we will learn to project changes arising from human and natural perturbations of the Critical Zone.

UR - http://www.scopus.com/inward/record.url?scp=79955497423&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955497423&partnerID=8YFLogxK

U2 - 10.1146/annurev-earth-040809-152321

DO - 10.1146/annurev-earth-040809-152321

M3 - Article

VL - 39

SP - 387

EP - 416

JO - Annual Review of Earth and Planetary Sciences

JF - Annual Review of Earth and Planetary Sciences

SN - 0084-6597

ER -