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From: Madeleine Humphreys <madeleine.humphreys@xxxxxxxxx.uk >
Subject: IAVCEI session VI.2: "New approaches to understanding magma and volatile evolution, sub-volcanic intrusions and porphyry ore mineralisation"
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Dear colleagues,
We invite those interested in porphyry ore mineralisation and magmatic volatile evolution to submit an abstract to session VI.2 "New approaches to understanding magma and volatile evolution, sub-volcanic intrusions and porphyry ore mineralisation".
We aim to bring together the economic geology community with those studying petrology-volcanology, to explore their current perspectives on sub-volcanic magmatic and hydrothermal processes, including new interpretations based on volatiles in hydrous minerals. Recent developments in magma petrology and volcanology have shown that arc magmas are very volatile-rich, with significantly higher water contents than previously thought; they typically form mushy, immobile reservoirs through incremental intrusion and mixing; and may undergo decoupling of magma and exsolved volatiles. Water, halogens, CO2 and sulphur all play an important role in magmatic processes, from fractionation to degassing and ore mineralisation. Volatile-bearing minerals (e.g. apatite, amphibole) represent a particularly under-utilised potential record of changing volatile compositions and can offer new insights into these processes. There is also much that volcanologists can learn about subvolcanic magma systems from the wealth of evidence exposed by exploration and mining. We welcome contributions bringing new insights from both economic and petrological perspectives.
Abstract submission is now open, and the deadline for submission is 17th March 2017. Please submit your abstracts through the IAVCEI website: http://iavcei2017.org/
Best wishes from the conveners,
Madeleine Humphreys, Durham University, UK (madeleine.humphreys@xxxxxxxxx.uk )
Richard Herrington, Natural History Museum, UK (r.herrington@xxxxxxxxx)
Richard Brooker, University of Bristol, UK (richard.brooker@xxxxxxxxxxxxx)
Victoria Smith, Unversity of Oxford, UK (victoria.smith@xxxxxxxxxxxxxx)
Alison Rust, University of Bristol, UK (alison.rust@xxxxxxxxxxxxx)
John Dilles, Oregon State University, USA (dillesj@xxxxxxxxxxxxxxxxxxx)
We invite those interested in porphyry ore mineralisation and magmatic volatile evolution to submit an abstract to session VI.2 "New approaches to understanding magma and volatile evolution, sub-volcanic intrusions and porphyry ore mineralisation".
We aim to bring together the economic geology community with those studying petrology-volcanology, to explore their current perspectives on sub-volcanic magmatic and hydrothermal processes, including new interpretations based on volatiles in hydrous minerals. Recent developments in magma petrology and volcanology have shown that arc magmas are very volatile-rich, with significantly higher water contents than previously thought; they typically form mushy, immobile reservoirs through incremental intrusion and mixing; and may undergo decoupling of magma and exsolved volatiles. Water, halogens, CO2 and sulphur all play an important role in magmatic processes, from fractionation to degassing and ore mineralisation. Volatile-bearing minerals (e.g. apatite, amphibole) represent a particularly under-utilised potential record of changing volatile compositions and can offer new insights into these processes. There is also much that volcanologists can learn about subvolcanic magma systems from the wealth of evidence exposed by exploration and mining. We welcome contributions bringing new insights from both economic and petrological perspectives.
Abstract submission is now open, and the deadline for submission is 17th March 2017. Please submit your abstracts through the IAVCEI website: http://iavcei2017.org
Best wishes from the conveners,
Madeleine Humphreys, Durham University, UK (madeleine.humphreys@xxxxxxxxx
Richard Herrington, Natural History Museum, UK (r.herrington@xxxxxxxxx)
Richard Brooker, University of Bristol, UK (richard.brooker@xxxxxxxxxxxxx
Victoria Smith, Unversity of Oxford, UK (victoria.smith@xxxxxxxxxxxxxx
Alison Rust, University of Bristol, UK (alison.rust@xxxxxxxxxxxxx)
John Dilles, Oregon State University, USA (dillesj@xxxxxxxxxxxxxxxxxxx)
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