HIGH MAGNESIA LIQUIDS AS THE PARENTAL MAGMA FOR OCEAN-FLOOR BASALTS

被引：127

作者：

ELTHON, D ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT GEOL SCI,NEW YORK,NY 10027

来源：

NATURE | 1979年 / 278卷 / 5704期

关键词：

D O I：

10.1038/278514a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The primary melt segregating from the upper mantle beneath an oceanic ridge is shown to contain ~18% MgO. Whereas these primary liquids are capable of generating the petrological features of the oceanic crust, this is not possible for tholeiitic basalts with 9-11% MgO which are highly fractionated. Compositions of liquids ranging from primary melts to high calcium picrites from the Tortuga ophiolite complex, Chile, are reported. © 1979 Nature Publishing Group.

引用

页码：514 / 518

页数：5

共 34 条

[11] DEWEY JF, 1977, GEOL SOC AM BULL, V88, P960, DOI 10.1130/0016-7606(1977)88<960:GOPA>2.0.CO
[12] 2
[13] PARTIAL MELTING IN JOSEPHINE PERIDOTITE .1. EFFECT ON MINERAL-COMPOSITION AND ITS CONSEQUENCE FOR GEOBAROMETRY AND GEOTHERMOMETRY
DICK, HJB
[J]. AMERICAN JOURNAL OF SCIENCE, 1977, 277 (07) : 801 - 832
[14] REFRACTORY MEGACRYSTS AND MAGNESIUM-RICH MELT INCLUSIONS WITHIN SPINEL IN OCEANIC THOLEIITES - INDICATORS OF MAGMA MIXING AND PARENTAL MAGMA COMPOSITION
DONALDSON, CH
BROWN, RW
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1977, 37 (01) : 81 - 89
[15] ELTHON D, 1978, GEOL SOC AM PROG ABS, P396
[16] MINERALOGY OF ULTRAMAFIC CUMULATES AND TECTONITES FROM EASTERN-PAPUA
ENGLAND, RN
DAVIES, HL
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1973, 17 (02) : 416 - 425
[17] HODGES FN, 1976, GEOL SOC AM PROG ABS, P920
[18] JACKSON ED, 1975, GEOL SOC AM BULL, V86, P390, DOI 10.1130/0016-7606(1975)86<390:TVOGCU>2.0.CO
[19] 2
[20] MINGS BIGHT OPHIOLITE COMPLEX, NEWFOUNDLAND - APPALACHIAN OCEANIC-CRUST AND MANTLE
KIDD, WSF
DEWEY, JF
BIRD, JM
[J]. CANADIAN JOURNAL OF EARTH SCIENCES, 1978, 15 (05) : 781 - 804

← 1 2 3 4 →