The time scales of magma mixing and mingling involving primitive melts and melt–mush interaction at mid-ocean ridges

2009 ◽  
Vol 159 (3) ◽  
pp. 371-387 ◽  
Author(s):  
Fidel Costa ◽  
Laurence A. Coogan ◽  
Sumit Chakraborty
Keyword(s):  
Time Scales ◽  
Magma Mixing ◽  
Ocean Ridges ◽  
Magma Mixing And Mingling

Element and Sr isotope zoning in plagioclase in the dacites from the southwestern Okinawa Trough: Insights into magma mixing processes and time scales

Lithos ◽  
2020 ◽  
Vol 376-377 ◽  
pp. 105776
Author(s):  
Zuxing Chen ◽  
Zhigang Zeng ◽  
Xiaoyuan Wang ◽  
Xing Peng ◽  
Yuxiang Zhang ◽  
...  
Keyword(s):  
Time Scales ◽  
Magma Mixing ◽  
Okinawa Trough ◽  
Sr Isotope ◽  
Mixing Processes

Restite-melt and mafic-felsic magma mixing and mingling in an S-type dacite, Cerro del Hoyazo, southeastern Spain

1992 ◽  
Vol 83 (1-2) ◽  
pp. 139-144 ◽  
Author(s):  
H. P. Zeck
Keyword(s):  
Magma Mixing ◽  
Mafic Magma ◽  
Felsic Magma ◽  
Pelitic Rock ◽  
Rock Fragments ◽  
Southeastern Spain ◽  
Magma Mixing And Mingling ◽  
Glass Base

ABSTRACTApproximately 10-15 vol% of the Neogene Hoyazo dacite consists of Al-rich restite rock inclusions (A12O3 = 20–45%) and monocrystal inclusions derived therefrom. Restite material and dacitic melt were formed syngenetically from a (semi-)pelitic rock sequence by means of anatexis. Restite rock fragments and dacite show similar high δ18O values (13–16‰) corresponding to those found for sedimentary material. Striking monocrystal restite inclusions in the dacite rock are graphite crystals measuring a few hundred μm, 0.5–10 mm blue cordierite crystals and 2–10 mm ruby red crystals of almandine-rich garnet (1.1 ± 0.2 vol%). Although the almandine crystals are perfectly euhedral, they are identical in every respect to the crystals found in the Al-rich restite rock inclusions and cannot be crystallisation products of the magmatic melt. The dacite also contains many inclusions of quartz gabbroic and basaltoid material which contains inclusions identical to the restite material found in the dacitic glass base. Many basaltoid inclusions show well-developed chilled borders. These inclusions may represent a more mafic magma of deeper origin which mixed with some dacite magma before mingling into it.

Geochemical composition, petrography and 40Ar/39Ar age of the Heldburg phonolite: implications on magma mixing and mingling

2015 ◽  
Vol 104 (8) ◽  
pp. 2033-2055 ◽  
Author(s):  
Michael Abratis ◽  
Lothar Viereck ◽  
Jörg A. Pfänder ◽  
Roland Hentschel
Keyword(s):  
Magma Mixing ◽  
Geochemical Composition ◽  
Magma Mixing And Mingling

scholarly journals Magma Mixing and Mingling for Xiangjiananshan Granitic batholith at eastern area of the East Kunlun Orogenic Belt

2017 ◽  
Vol 91 (s1) ◽  
pp. 63-63 ◽  
Author(s):  
Guochao CHEN ◽  
Xianzhi PEI ◽  
Ruibao LI ◽  
Zuochen LI ◽  
Chenjun LIU ◽  
...  
Keyword(s):  
Magma Mixing ◽  
Orogenic Belt ◽  
Eastern Area ◽  
East Kunlun ◽  
Magma Mixing And Mingling ◽  
East Kunlun Orogenic Belt ◽  
Granitic Batholith

Magma mixing at mid-ocean ridges: Evidence from legs 45 and 46-DSDP

1978 ◽  
Vol 5 (6) ◽  
pp. 423-425 ◽  
Author(s):  
Michael A. Dungan ◽  
Philip E. Long ◽  
J. M. Rhodes
Keyword(s):  
Magma Mixing ◽  
Ocean Ridges

Along-strike magma mixing beneath mid-ocean ridges: effects on isotopic ratios

1987 ◽  
Vol 84 (4) ◽  
pp. 393-405 ◽  
Author(s):  
P.M. Kenyon ◽  
D.L. Turcotte
Keyword(s):  
Magma Mixing ◽  
Isotopic Ratios ◽  
Ocean Ridges
Sign in / Sign up

Export Citation Format

Share Document