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Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin./
Author:	Hernandez, Gabriel.
Description:	1 online resource (87 pages)
Notes:	Source: Masters Abstracts International, Volume: 84-11.
Contained By:	Masters Abstracts International84-11.
Subject:	Environmental geology. -
Online resource:	click for full text (PQDT)
ISBN:	9798379541170

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.
Hernandez, Gabriel.

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin. - 1 online resource (87 pages)

Source: Masters Abstracts International, Volume: 84-11.

Thesis (M.S.)--Mississippi State University, 2023.

Includes bibliographical references

Methane seeps are a transport pathway for carbon from seafloor sediments to the marine environment with important implications for global biogeochemical cycling. Accordingly, there is substantial interest in better understanding the processes that control seep location and predicting the distribution of seeps with existing seafloor datasets. Visual evaluation of methane seeps, in multibeam sonar water column data, suggests a spatial relationship between seeps and specific seafloor morphologic features such as ridge crests. In this thesis, seafloor geomorphology at 1996 seep detection sites on the US Atlantic margin was quantitatively characterized by geomorphologic phonotype, bathymetric position index, slope, rugosity, and aspect to evaluate the relationship between seafloor geomorphology and seep location. Results indicate a spatial association between methane seeps and localized bathymetric highs. Additionally, maximum entropy spatial distribution analysis indicates that seafloor geomorphology is partially predictive of seep location and that existing bathymetric datasets may be useful in identifying undiscovered seeps.

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

Mode of access: World Wide Web

ISBN: 9798379541170Subjects--Topical Terms:

904653
Environmental geology.
Subjects--Index Terms:

Bathymetric position indexIndex Terms--Genre/Form:

554714
Electronic books.

Evaluating the Relationship Between Methane Seeps and Seafloor Geomorphology on the Northern US Atlantic Margin.
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500 $a Advisor: Skarke, Adam.
502 $a Thesis (M.S.)--Mississippi State University, 2023.
504 $a Includes bibliographical references
520 $a Methane seeps are a transport pathway for carbon from seafloor sediments to the marine environment with important implications for global biogeochemical cycling. Accordingly, there is substantial interest in better understanding the processes that control seep location and predicting the distribution of seeps with existing seafloor datasets. Visual evaluation of methane seeps, in multibeam sonar water column data, suggests a spatial relationship between seeps and specific seafloor morphologic features such as ridge crests. In this thesis, seafloor geomorphology at 1996 seep detection sites on the US Atlantic margin was quantitatively characterized by geomorphologic phonotype, bathymetric position index, slope, rugosity, and aspect to evaluate the relationship between seafloor geomorphology and seep location. Results indicate a spatial association between methane seeps and localized bathymetric highs. Additionally, maximum entropy spatial distribution analysis indicates that seafloor geomorphology is partially predictive of seep location and that existing bathymetric datasets may be useful in identifying undiscovered seeps.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Environmental geology. $3 904653
650 4 $a Environmental science. $3 1179128
650 4 $a Marine geology. $3 1178828
650 4 $a Geomorphology. $3 566098
653 $a Bathymetric position index
653 $a Marine geology
653 $a Maximum entropy modeling
653 $a Methane hydrate
653 $a Methane seep
653 $a Atlantic margin
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