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Crystal to Crustal Scale Seismic Anisotropy : = Implications for Continental Tectonism.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Crystal to Crustal Scale Seismic Anisotropy :/
Reminder of title:	Implications for Continental Tectonism.
Author:	Frothingham, Michael Geoffrey.
Description:	1 online resource (284 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-11, Section: B.
Contained By:	Dissertations Abstracts International84-11B.
Subject:	Geology. -
Online resource:	click for full text (PQDT)
ISBN:	9798379532130

Crystal to Crustal Scale Seismic Anisotropy : = Implications for Continental Tectonism.
Frothingham, Michael Geoffrey.

Crystal to Crustal Scale Seismic Anisotropy :Implications for Continental Tectonism. - 1 online resource (284 pages)

Source: Dissertations Abstracts International, Volume: 84-11, Section: B.

Thesis (Ph.D.)--University of Colorado at Boulder, 2023.

Includes bibliographical references

Much of what we know about continents comes from rocks exposed on Earth's surface; where we live, travel, and observe. However, this is just the outermost crust of our immense planet-the rest is buried. Understanding Earth's interior, the roots of deep mountains, and the origin of continents relies on remote analytical methods. Just as telescopes are used to study distant galaxies via light waves, we use geophysics and seismic waves to investigate deep Earth structure. This thesis examines the seismic properties of rocks at various scales to understand the fabric and formation of continents. In three main chapters, this study focuses on the directionally varying velocities (seismic anisotropy) of waves as they propagate through Earth materials from the crystal to crustal scales. Chapter Two investigates the seismic properties of rocks with magmatic fabrics (e.g., granite), complementing what is already understood about rocks with solid-state deformation fabrics (e.g., layered gneiss). Chapter Three scales up these calculated seismic properties of rock samples from the centimeter scale to the kilometer scale via geologic map data and seismic station data in Colorado to examine links between surface and subsurface geology. Chapter Four applies these properties in the Southern Appalachians; using observed crustal seismic anisotropy measured from seismic stations on Earth's surface to interpret subsurface rock fabrics and structures (e.g., the Appalachian Decollement) that facilitate the collision of continents. This thesis diversifies what scientists know about rock seismic properties, outlines how to scale these properties for various tectonic interpretations, and demonstrates how interdisciplinary geophysical and structural collaborations can inform on the origin of mountains.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379532130Subjects--Topical Terms:

670379
Geology.
Subjects--Index Terms:

RocksIndex Terms--Genre/Form:

554714
Electronic books.

Crystal to Crustal Scale Seismic Anisotropy : = Implications for Continental Tectonism.
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520 $a Much of what we know about continents comes from rocks exposed on Earth's surface; where we live, travel, and observe. However, this is just the outermost crust of our immense planet-the rest is buried. Understanding Earth's interior, the roots of deep mountains, and the origin of continents relies on remote analytical methods. Just as telescopes are used to study distant galaxies via light waves, we use geophysics and seismic waves to investigate deep Earth structure. This thesis examines the seismic properties of rocks at various scales to understand the fabric and formation of continents. In three main chapters, this study focuses on the directionally varying velocities (seismic anisotropy) of waves as they propagate through Earth materials from the crystal to crustal scales. Chapter Two investigates the seismic properties of rocks with magmatic fabrics (e.g., granite), complementing what is already understood about rocks with solid-state deformation fabrics (e.g., layered gneiss). Chapter Three scales up these calculated seismic properties of rock samples from the centimeter scale to the kilometer scale via geologic map data and seismic station data in Colorado to examine links between surface and subsurface geology. Chapter Four applies these properties in the Southern Appalachians; using observed crustal seismic anisotropy measured from seismic stations on Earth's surface to interpret subsurface rock fabrics and structures (e.g., the Appalachian Decollement) that facilitate the collision of continents. This thesis diversifies what scientists know about rock seismic properties, outlines how to scale these properties for various tectonic interpretations, and demonstrates how interdisciplinary geophysical and structural collaborations can inform on the origin of mountains.
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