Off-axis volcanism Snaefellsnes Peninsula, Iceland – constraining source lithology, melt generation, and magma Ppumbing

2020 ◽  
Author(s):  
Jacob Siebach
Keyword(s):  
Melt Generation

Magmatism in the Gregory Rift, East Africa: Evidence for Melt Generation by a Plume

1993 ◽  
Vol 34 (5) ◽  
pp. 1007-1027 ◽  
Author(s):  
D. LATIN ◽  
M. J. NORRY ◽  
R. J. E. TARZEY
Keyword(s):  
East Africa ◽  
Melt Generation

scholarly journals A trapdoor mechanism for slab tearing and melt generation in the northern Andes

Geology ◽  
2018 ◽  
Vol 47 (1) ◽  
pp. 23-26 ◽  
Author(s):  
Gideon Rosenbaum ◽  
Mike Sandiford ◽  
John Caulfield ◽  
Jennifer M. Garrison
Keyword(s):  
Northern Andes ◽  
Melt Generation ◽  
Slab Tearing

scholarly journals The Velay dome (French Massif Central): melt generation and granite emplacement during orogenic evolution

2001 ◽  
Vol 342 (3-4) ◽  
pp. 207-237 ◽  
Author(s):  
P. Ledru ◽  
G. Courrioux ◽  
C. Dallain ◽  
J.M. Lardeaux ◽  
J.M. Montel ◽  
...  
Keyword(s):  
French Massif Central ◽  
Massif Central ◽  
Granite Emplacement ◽  
Melt Generation

On the nature of the parental magma of the Palaeogene Staffa Magma sub-type, Isle of Mull, Scotland

1998 ◽  
Vol 89 (2) ◽  
pp. 87-93 ◽  
Author(s):  
Andrew C. Kerr
Keyword(s):  
Crustal Contamination ◽  
Parental Magma ◽  
Distinct Group ◽  
Crystal Fractionation ◽  
Distinctive Features ◽  
Tholeiitic Magma ◽  
Igneous Province ◽  
Melt Generation

AbstractThe tholeiitic, columnar (Staffa type) lavas found at, and near, the base of the Tertiary lava succession on the Isle of Mull contrast markedly with overlying transitional tholeiiticalkalic Mull Plateau Group lavas, and as a result previous workers have classed the Staffa type lavas as a distinct group. The Staffa type lavas are among the most contaminated in the British Tertiary Igneous Province and have equilibrated and fractionated at shallow depths within the crust (relative to the overlying Plateau Group lavas), so obscuring the chemical identity of their parental magma. However, Staffa type lavas which are more basic than examples hitherto reported help in the elucidation of the parental magma. It is demonstrated that the Staffa type lavas were derived from a parental magma which was compositionally similar to that of Plateau Group lavas. The primary reasons for the distinctive features of the Staffa type are related to post-mantle melt generation processes, i.e. to extensive crystal fractionation and to crustal contamination at shallow crustal depths. The lavas are compositionally and temporally unrelated to the Hebridean tholeiitic magma types, the Central Mull Tholeiite type and the Skye Preshal More type.

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