東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Mesosiderite Formation: Redox from t...

Caves, Lindsay R.

FindBook

Google Book

Amazon

博客來

Mesosiderite Formation: Redox from the Metal Perspective.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Mesosiderite Formation: Redox from the Metal Perspective./
作者:	Caves, Lindsay R.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	231 p.
附註:	Source: Masters Abstracts International, Volume: 81-05.
Contained By:	Masters Abstracts International81-05.
標題:	Geochemistry. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=22616267
ISBN:	9781088384701

Mesosiderite Formation: Redox from the Metal Perspective.
Caves, Lindsay R.

Mesosiderite Formation: Redox from the Metal Perspective. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 231 p.

Source: Masters Abstracts International, Volume: 81-05.

Thesis (M.S.)--Texas Christian University, 2019.

This item must not be sold to any third party vendors.

While mesosiderite formation is not well understood, it is widely believed that redox reactions occurred during metal-silicate mixing. Previous studies focused on evaluating redox reactions by studying the silicates within mesosiderites, but little attention has been given to the metal for complementary evidence of such processes. Here, the evidence for redox reactions in the metal portion of mesosiderites is evaluated. Five mesosiderites were chosen that span the range of petrologic classes (A, B, C, Anomalous) and that have experienced the lowest grade of metamorphism (subgroup 1). The metal compositions of both matrix metal and clast (nodule) metal were compared and examined for evidence of redox reactions. A deletion of P in the matrix metal relative to clast metal was observed, which along with the FeO reduction in silicates noted by previous workers, indicates that redox reactions did occur during metal-silicate mixing. However, depletions of Cu and Mo in the matrix metal cannot be explained by these reactions and require other processes, such as sulfidization, to have occurred. Metal clast compositions produce a trend that is suggestive of fractional crystallization; however, it is unlikely that the whole metallic portion sampled by these meteorites experienced fractional crystallization. It appears to be constrained to the anomalous samples measured here. This trend could be explained by isolated metallic masses that underwent fractional crystallization before mixing or by hit-and-run collisions that produced metallic masses that ranged in size.

ISBN: 9781088384701Subjects--Topical Terms:

539092
Geochemistry.
Subjects--Index Terms:

Mesosiderite formation

Mesosiderite Formation: Redox from the Metal Perspective.
LDR:02685nmm a2200361 4500 001 2279659
005 20210823083412.5
008 220723s2019 ||||||||||||||||| ||eng d
020 $a 9781088384701
035 $a (MiAaPQ)AAI22616267
035 $a AAI22616267
040 $a MiAaPQ $c MiAaPQ
100 1 $a Caves, Lindsay R. $3 3558127
245 1 0 $a Mesosiderite Formation: Redox from the Metal Perspective.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 231 p.
500 $a Source: Masters Abstracts International, Volume: 81-05.
500 $a Advisor: Mayne, Rhiannon.
502 $a Thesis (M.S.)--Texas Christian University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a While mesosiderite formation is not well understood, it is widely believed that redox reactions occurred during metal-silicate mixing. Previous studies focused on evaluating redox reactions by studying the silicates within mesosiderites, but little attention has been given to the metal for complementary evidence of such processes. Here, the evidence for redox reactions in the metal portion of mesosiderites is evaluated. Five mesosiderites were chosen that span the range of petrologic classes (A, B, C, Anomalous) and that have experienced the lowest grade of metamorphism (subgroup 1). The metal compositions of both matrix metal and clast (nodule) metal were compared and examined for evidence of redox reactions. A deletion of P in the matrix metal relative to clast metal was observed, which along with the FeO reduction in silicates noted by previous workers, indicates that redox reactions did occur during metal-silicate mixing. However, depletions of Cu and Mo in the matrix metal cannot be explained by these reactions and require other processes, such as sulfidization, to have occurred. Metal clast compositions produce a trend that is suggestive of fractional crystallization; however, it is unlikely that the whole metallic portion sampled by these meteorites experienced fractional crystallization. It appears to be constrained to the anomalous samples measured here. This trend could be explained by isolated metallic masses that underwent fractional crystallization before mixing or by hit-and-run collisions that produced metallic masses that ranged in size.
590 $a School code: 0229.
650 4 $a Geochemistry. $3 539092
650 4 $a Geology. $3 516570
650 4 $a Petrology. $3 535210
653 $a Mesosiderite formation
653 $a Metamorphism
653 $a Metal-silicate mixing
653 $a Metal clast compositions
690 $a 0996
690 $a 0372
690 $a 0584
710 2 $a Texas Christian University. $b College of Science and Engineering. $3 1029121
773 0 $t Masters Abstracts International $g 81-05.
790 $a 0229
791 $a M.S.
792 $a 2019
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=22616267