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

Examination of Magmatic Differentiat...

Farner, Michael Joseph.

FindBook

Google Book

Amazon

博客來

Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics./
作者:	Farner, Michael Joseph.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	187 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.
Contained By:	Dissertation Abstracts International79-05B(E).
標題:	Geochemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10673345
ISBN:	9780355382631

Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics.
Farner, Michael Joseph.

Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 187 p.

Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.

Thesis (Ph.D.)--Rice University, 2017.

Granitic rocks and mafic enclaves from the Bernasconi Hills pluton in the Peninsular Ranges Batholith, California, USA provide constraint on the extent and spatial lengthscale of mafic-felsic interaction in upper crustal granitic plutons. Further detailed mapping of mineralogical variations in the pluton and among enclaves highlights late-stage magmatic processes such as segregation of evolved residual melt and reactions between solidified enclaves and granitic melts. Collectively, the field, mineralogical and geochemical systematics of the Bernasconi Hills pluton show that mafic-felsic mixing between host granitic magma and partially solidified mafic enclaves was limited spatially, on the order of meters, and only proceeded to an early, incipient stage. Phosphorus-zirconium systematics indicate that the pluton developed through a combination of crystal fractionation and incipient mixing, in contrast to volcanic rocks, where magmatic evolution is primarily driven by crystal fractionation. Further examination of global geochemical systematics of subaerial arc lavas show a correlation between SiO2 and crustal thickness as expressed by elevation. Arc lavas become more compositionally evolved with increasing elevation/crustal thickness, tend towards increasingly iron-depleted, or calc-alkaline, compositions and show evidence for garnet fractionation at depth in thick arcs. Coupled thermal and thermodynamic compositional modeling indicates that crustal thickness controls arc lava compositions by modifying the thermal lifespan and segregation times of melt in crustal magma chambers.

ISBN: 9780355382631Subjects--Topical Terms:

539092
Geochemistry.

Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics.
LDR:02648nmm a2200301 4500 001 2111742
005 20180529094436.5
008 180626s2017 ||||||||||||||||| ||eng d
020 $a 9780355382631
035 $a (MiAaPQ)AAI10673345
035 $a (MiAaPQ)0187rice:2143Farner
035 $a AAI10673345
040 $a MiAaPQ $c MiAaPQ
100 1 $a Farner, Michael Joseph. $3 3265890
245 1 0 $a Examination of Magmatic Differentiation Processes in the Formation of Intermediate and Silicic Composition Magmas: Constraints from Regional and Global Geochemical Systematics.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 187 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.
500 $a Adviser: Cin-Ty A. Lee.
502 $a Thesis (Ph.D.)--Rice University, 2017.
520 $a Granitic rocks and mafic enclaves from the Bernasconi Hills pluton in the Peninsular Ranges Batholith, California, USA provide constraint on the extent and spatial lengthscale of mafic-felsic interaction in upper crustal granitic plutons. Further detailed mapping of mineralogical variations in the pluton and among enclaves highlights late-stage magmatic processes such as segregation of evolved residual melt and reactions between solidified enclaves and granitic melts. Collectively, the field, mineralogical and geochemical systematics of the Bernasconi Hills pluton show that mafic-felsic mixing between host granitic magma and partially solidified mafic enclaves was limited spatially, on the order of meters, and only proceeded to an early, incipient stage. Phosphorus-zirconium systematics indicate that the pluton developed through a combination of crystal fractionation and incipient mixing, in contrast to volcanic rocks, where magmatic evolution is primarily driven by crystal fractionation. Further examination of global geochemical systematics of subaerial arc lavas show a correlation between SiO2 and crustal thickness as expressed by elevation. Arc lavas become more compositionally evolved with increasing elevation/crustal thickness, tend towards increasingly iron-depleted, or calc-alkaline, compositions and show evidence for garnet fractionation at depth in thick arcs. Coupled thermal and thermodynamic compositional modeling indicates that crustal thickness controls arc lava compositions by modifying the thermal lifespan and segregation times of melt in crustal magma chambers.
590 $a School code: 0187.
650 4 $a Geochemistry. $3 539092
650 4 $a Geology. $3 516570
690 $a 0996
690 $a 0372
710 2 0 $a Rice University. $b Earth Science. $3 3265888
773 0 $t Dissertation Abstracts International $g 79-05B(E).
790 $a 0187
791 $a Ph.D.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10673345