GMPV
Geochemistry, Mineralogy, Petrology & Volcanology

Mike Jollands

Mike Jollands is an experimental petrologist at the Lamont Doherty Earth Observatory, New York, USA. He studies the diffusion and substitution mechanisms of trace elements, making use of high temperature and pressure equipment to simulate volcanic and mantle conditions. www.mikejollands.com

#EGU2020 Sessions in the Spotlight: Evolution of the Earth’s upper mantle: a petrological, geochemical and geodynamic perspective on lithospheric mantle xenoliths, orogenic and ophiolitic peridotites

#EGU2020 Sessions in the Spotlight: Evolution of the Earth’s upper mantle: a petrological, geochemical and geodynamic perspective on lithospheric mantle xenoliths, orogenic and ophiolitic peridotites

The EGU 2020 abstract submissions are now open for the next two months! Every few days, we will highlight a geochemistry, mineralogy, petrology and/or volcanology session right here – great news if like me, you find choosing which session to submit to more difficult than choosing a decent movie on Netflix… Today it’s the turn of GMPV 4.4. Evolution of the Earth’s upper mant ...[Read More]

#EGU2020 Sessions in the Spotlight: Geochronology in hot and dynamic systems: approaches and tools to unravel the past

#EGU2020 Sessions in the Spotlight: Geochronology in hot and dynamic systems: approaches and tools to unravel the past

The EGU 2020 abstract submissions are now open for the next two months! Every few days, we will highlight a geochemistry, mineralogy, petrology and/or volcanology session right here – great news if you are paralysed by indecision or overwhelmed by the number of sessions. Today it’s the turn of GMPV1.7, “Geochronology in hot and dynamic systems: approaches and tools to unravel the ...[Read More]

#mineralmonday: tiptopite

#mineralmonday: tiptopite

#mineralmonday: your weekly* dose of obscure mineralogy, every Monday** [*not guaranteed; **or possibly Tuesday-Sunday] What is it? Tiptopite: K2Na1.5Ca0.5Li3Be6(PO4)6(OH)2•(H2O) What’s it made of?  Take a deep breath and recite after me: potassium, sodium, calcium, lithium, beryllium, phosphorus, oxygen and water (H2O). Is it pretty? Yes, it’s a beautiful fibrous mineral. You wouldn&# ...[Read More]

#mineralmonday : sengierite

#mineralmonday : sengierite

#mineralmonday: your weekly* dose of obscure mineralogy, every Monday** [*not guaranteed; **or possibly Tuesday-Sunday] What is it? Sengierite: Cu2(UO2)2V2O8.6(H2O) What’s it made of? A few useful metals – copper (Cu), vanadium (V), uranium (U), plus oxygen (O) and water (H2O). So by ‘useful’ you mean ‘radioactive’? Pretty much. The main reason people have been ...[Read More]