Skip to main content

ASU Global menu

Skip to Content Report an accessibility problem ASU Home My ASU Colleges and Schools Sign In
Arizona State University Arizona State University
ASU Library KEEP

Main navigation

Home Browse Collections Share Your Work
Copyright Describe Your Materials File Formats Open Access Repository Practices Share Your Materials Terms of Deposit API Documentation
Skip to Content Report an accessibility problem ASU Home My ASU Colleges and Schools Sign In
  1. KEEP
  2. Theses and Dissertations
  3. ASU Electronic Theses and Dissertations
  4. Introducing a terrestrial carbon pool in desert bedrock mountains
  5. Full metadata

Introducing a terrestrial carbon pool in desert bedrock mountains

Full metadata

Description

Growth of the Phoenix metropolitan area led to exposures of the internal bedrock structure of surrounding semi-arid mountain ranges as housing platforms or road cuts. Such exposures in the Sonoran and Mojave deserts reveal the presence of sedimentary calcium carbonate infilling the pre-existing fracture matrix of the bedrock. Field surveys of bedrock fractures filled with carbonate (BFFC) reveal an average of 0.079 +/- 0.024 mT C/m2 stored in the upper 2 m of analyzed bedrock exposures. Back-scattered electron microscopy images indicate the presence of carbonate at the micron scale, not included in this estimation. Analysis of the spatial extent of bedrock landforms in arid and semi-arid regions worldwide suggests that ~1485 GtC could potentially be stored in the upper 2 m horizon of BFFCs. Radiocarbon dating obtained at one of the sites indicates it is likely that some of the carbonate was flushed into the bedrock system during glacial wet pulses, and is stored on Pleistocene timescales or longer. Strontium isotope analysis at the same site suggest the potential for a substantial cation contribution from weathering of the local bedrock, indicating the potential exists for sequestration of atmospheric carbon in BFFCs. Rates of carbon release from BFFCs are tied to rates of erosion of bedrock ranges in desert climates.

Date Created
2013
Contributors
  • Harrison, Emma (Author)
  • Dorn, Ronald (Thesis advisor)
  • Reynolds, Stephen (Committee member)
  • Schmeeckle, Mark (Committee member)
  • Arizona State University (Publisher)
Topical Subject
  • geomorphology
  • arid geomorphology
  • carbon cycle
  • Carbon Sequestration
  • Radiocarbon dating
  • strontium isotopes
  • Weathering
  • Geological carbon sequestration--Arizona--Phoenix Metropolitan Area.
  • Geological carbon sequestration
  • Shields (Geology)--Arizona--Phoenix Metropolitan Area.
  • Shields (Geology)
  • Desert ecology--Arizona--Phoenix Metropolitan Area.
  • Desert ecology
Resource Type
Text
Genre
Masters Thesis
Academic theses
Extent
vi, 62 p. : ill. (some col.), maps
Language
eng
Copyright Statement
In Copyright
Reuse Permissions
All Rights Reserved
Primary Member of
ASU Electronic Theses and Dissertations
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.I.18039
Embargo Release Date
Wed, 04/29/2015 - 20:06
Statement of Responsibility
by Emma Harrison
Description Source
Retrieved on Dec. 6, 2013
Level of coding
full
Note
Partial requirement for: M.A., Arizona State University, 2013
Note type
thesis
Includes bibliographical references (p. 50-58)
Note type
bibliography
Field of study: Geography
System Created
  • 2013-07-12 06:27:18
System Modified
  • 2021-08-30 01:40:47
  •     
  • 1 year 4 months ago
Additional Formats
  • OAI Dublin Core
  • MODS XML

Quick actions

About this item

Overview
 Copy permalink

Explore this item

Explore Document

Share this content

Feedback

ASU University Technology Office Arizona State University.
KEEP

Contact Us

Repository Services
Home KEEP PRISM ASU Research Data Repository
Resources
Terms of Deposit Sharing Materials: ASU Digital Repository Guide Open Access at ASU

The ASU Library acknowledges the twenty-three Native Nations that have inhabited this land for centuries. Arizona State University's four campuses are located in the Salt River Valley on ancestral territories of Indigenous peoples, including the Akimel O’odham (Pima) and Pee Posh (Maricopa) Indian Communities, whose care and keeping of these lands allows us to be here today. ASU Library acknowledges the sovereignty of these nations and seeks to foster an environment of success and possibility for Native American students and patrons. We are advocates for the incorporation of Indigenous knowledge systems and research methodologies within contemporary library practice. ASU Library welcomes members of the Akimel O’odham and Pee Posh, and all Native nations to the Library.

Number one in the U.S. for innovation. ASU ahead of MIT and Stanford. - U.S. News and World Report, 8 years, 2016-2023
Maps and Locations Jobs Directory Contact ASU My ASU
Copyright and Trademark Accessibility Privacy Terms of Use Emergency COVID-19 Information