The effects of variable bulk composition on the melting systematics of fertile peridotitic assemblages

Pickering-Witter, J.; Johnston, Arthur

doi:10.1007/s004100000183

Cited by 140 publications

(88 citation statements)

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“…In that case, we obtain a melting reaction in which the main reactant is cpx, followed by opx and spl, and ol is on the product side: 0.78 5 cpx + 0.21 opx + 0.12 spl → 1.0 liq + 0.11 ol. This reaction is close to that reported at 1 GPa for fertile peridotites MM3 (Falloon et al, 2008) or FER-E (Pickering-Witter andJohnston, 2000). …”

supporting

confidence: 90%

Experimental derivation of nepheline syenite and phonolite liquids by partial melting of upper mantle peridotites

Laporte¹,

Lambart²,

Schiano³

et al. 2014

Earth and Planetary Science Letters

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supporting

confidence: 90%

Experimental derivation of nepheline syenite and phonolite liquids by partial melting of upper mantle peridotites

Laporte¹,

Lambart²,

Schiano³

et al. 2014

Earth and Planetary Science Letters

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“…The mode of the rather fertile mantle used and the proportion of minerals involved in partial melting are adopted from Johnson (1998). The latter is consistent with experimental studies on mantle rocks partial melting (Pickering-Witter and Johnston, 2000). Details of the trace element modeling for selected basic rocks from HTL and LTL series indicate that they are produced by 2-7% (avg.…”

Section: Higher Fluid Flux Derived From Subducted Sedimentsmentioning

confidence: 57%

Lead enrichment in Neotethyan volcanic rocks from Iran: The implications of a descending slab

Ghorbani

2006

Geochem. J.

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Basic-intermediate volcanic rocks from the Karaj-Danesfahan area in the Neotethyan magmatic belt of Iran show typical island arc geochemical signatures. The rocks demonstrate calcalkaline affinity with low abundances of "high field strength elements" (HFSE) such as Nb, Ta, Hf and Ti, and highly distinctive spiked trace element patterns at "large ion lithophile elements" (LILE) such as Ba, K, and Sr. Comparing the geochemical characteristics of two sets of the volcanic rocks sampled from two parts of the study area 100 km apart, however, indicate subtle but significant geochemical differences which bear important petrogenetic implications. One set of the volcanic rocks is abnormally enriched in Pb and shows consistently higher abundances of HFSE, particularly Ti, than the other set. These two series are called HTL series (after high titanium and lead) and LTL series (after low titanium and lead), respectively. HTL series volcanic rocks are further from the subduction axis, so they should have had a deeper descending slab contributing to their mantle wedge magmatism. To be able to release Pb-enriched fluids, the subducting slab should not have undergone earlier dehydration. It is because Pb is highly incompatible. It appears that in the early stage, subduction proceeded at a higher rate (cold slab), so slab-dehydration occurred at greater depths triggering HTL series magmatism. Subsequently the subduction rate decreased which in turn raised isotherms and promoted partial melting at shallower depths leading to LTL series magmatism.

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“…Kindly check and confirm reference Pickering and Johnson (2000) has been changed to Pickering-Witter and Johnson (2000) so that this citation matches the list.…”

Section: Aq3mentioning

confidence: 99%

Partial melting of secondary pyroxenite at 1 and 1.5 GPa, and its role in upwelling heterogeneous mantle

Borghini

Fumagalli

Rampone

2017

Contrib Mineral Petrol

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The effects of variable bulk composition on the melting systematics of fertile peridotitic assemblages

Cited by 140 publications

References 0 publications

Experimental derivation of nepheline syenite and phonolite liquids by partial melting of upper mantle peridotites

Experimental derivation of nepheline syenite and phonolite liquids by partial melting of upper mantle peridotites

Lead enrichment in Neotethyan volcanic rocks from Iran: The implications of a descending slab

Partial melting of secondary pyroxenite at 1 and 1.5 GPa, and its role in upwelling heterogeneous mantle

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