Abstract
Megacrysts are common in alkali basalt of Quaternary age in the northeastern Harrat Shamah basalt fields of Jordan. The dominant phases are Al-clinopyroxene, Al-bronzite, pleonaste spinel and kaersutite amphibole. The megacrysts differ in composition from analogous phases in associated lherzolite xenoliths, but are similar to those in associated Al-augite pyroxenite xenoliths. Major and trace element partioning indicates that most of the megacrysts may have been in equilibrium with their host magmas at high pressure.
| Original language | English |
|---|---|
| Pages (from-to) | 349-357 |
| Number of pages | 9 |
| Journal | Journal of African Earth Sciences |
| Volume | 21 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1995 |
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ASJC Scopus subject areas
- Earth-Surface Processes
- Geology
Cite this
Cr-poor megacrysts from the Shamah volcanic field, northwestern part of the Arabian Plate. / Nasir, Sobhi.
In: Journal of African Earth Sciences, Vol. 21, No. 3, 1995, p. 349-357.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cr-poor megacrysts from the Shamah volcanic field, northwestern part of the Arabian Plate
AU - Nasir, Sobhi
PY - 1995
Y1 - 1995
N2 - Megacrysts are common in alkali basalt of Quaternary age in the northeastern Harrat Shamah basalt fields of Jordan. The dominant phases are Al-clinopyroxene, Al-bronzite, pleonaste spinel and kaersutite amphibole. The megacrysts differ in composition from analogous phases in associated lherzolite xenoliths, but are similar to those in associated Al-augite pyroxenite xenoliths. Major and trace element partioning indicates that most of the megacrysts may have been in equilibrium with their host magmas at high pressure.
AB - Megacrysts are common in alkali basalt of Quaternary age in the northeastern Harrat Shamah basalt fields of Jordan. The dominant phases are Al-clinopyroxene, Al-bronzite, pleonaste spinel and kaersutite amphibole. The megacrysts differ in composition from analogous phases in associated lherzolite xenoliths, but are similar to those in associated Al-augite pyroxenite xenoliths. Major and trace element partioning indicates that most of the megacrysts may have been in equilibrium with their host magmas at high pressure.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029537056&partnerID=8YFLogxK
U2 - 10.1016/0899-5362(95)00078-8
DO - 10.1016/0899-5362(95)00078-8
M3 - Article
VL - 21
SP - 349
EP - 357
JO - Journal of African Earth Sciences
JF - Journal of African Earth Sciences
SN - 0899-5362
IS - 3
ER -