#experimentalpetrology — Public Fediverse posts

From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.

Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy

From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.

Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy

From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.

Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy

From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.

Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy

From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.

Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy

@FaithfullJohn I've the first edition (published 1980) that was the textbook for learning igneous petrology back sometime in the 1980's...

#IgneousPetrology #PhaseDiagrams #Basalts #ExperimentalPetrology

@FaithfullJohn I've the first edition (published 1980) that was the textbook for learning igneous petrology back sometime in the 1980's...

#IgneousPetrology #PhaseDiagrams #Basalts #ExperimentalPetrology

@FaithfullJohn I've the first edition (published 1980) that was the textbook for learning igneous petrology back sometime in the 1980's...

#IgneousPetrology #PhaseDiagrams #Basalts #ExperimentalPetrology

@FaithfullJohn I've the first edition (published 1980) that was the textbook for learning igneous petrology back sometime in the 1980's...

#IgneousPetrology #PhaseDiagrams #Basalts #ExperimentalPetrology

@FaithfullJohn I've the first edition (published 1980) that was the textbook for learning igneous petrology back sometime in the 1980's...

#IgneousPetrology #PhaseDiagrams #Basalts #ExperimentalPetrology

A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation

A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation

A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation

A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation

A thick section in both transmitted light (crossed polarizers) & reflected light. It shows the results of an experiment at mantle conditions to equilibrate the microstructure of olivine grains (colorful) and iron-nickel-sulfur melt (bronze colored, unmixed on solidification). The sulfide melt largely forms pockets at grain corners, and does not interconnect along grain edges. This melt can not easily separate from the silicate.
#ThinSectionThursday #Mantle #ExperimentalPetrology #CoreFormation

Mac Rutherford (Professor Emeritus of Geological Sciences, Brown University) has passed away

Excerpts from Julie Hammer’s announcement on the MSA listserv:

Mac developed an experimental phase equilibrium approach to constrain magma conditions prior to eruption.

He also studied the solubility and speciation of sulfur in magma, mineral barometry, & the kinetics of crystal nucleation & growth.
 
Shared LinkedIn page:
https://www.linkedin.com/posts/venezky_i-write-with-sad-news-which-may-or-may-not-activity-7115486557502902272-UuI_?
#minerals #geology #ExperimentalPetrology #BrownU

Mac Rutherford (Professor Emeritus of Geological Sciences, Brown University) has passed away

Excerpts from Julie Hammer’s announcement on the MSA listserv:

Mac developed an experimental phase equilibrium approach to constrain magma conditions prior to eruption.

He also studied the solubility and speciation of sulfur in magma, mineral barometry, & the kinetics of crystal nucleation & growth.
 
Shared LinkedIn page:
https://www.linkedin.com/posts/venezky_i-write-with-sad-news-which-may-or-may-not-activity-7115486557502902272-UuI_?
#minerals #geology #ExperimentalPetrology #BrownU

Mac Rutherford (Professor Emeritus of Geological Sciences, Brown University) has passed away

Excerpts from Julie Hammer’s announcement on the MSA listserv:

Mac developed an experimental phase equilibrium approach to constrain magma conditions prior to eruption.

He also studied the solubility and speciation of sulfur in magma, mineral barometry, & the kinetics of crystal nucleation & growth.
 
Shared LinkedIn page:
https://www.linkedin.com/posts/venezky_i-write-with-sad-news-which-may-or-may-not-activity-7115486557502902272-UuI_?
#minerals #geology #ExperimentalPetrology #BrownU

Mac Rutherford (Professor Emeritus of Geological Sciences, Brown University) has passed away

Excerpts from Julie Hammer’s announcement on the MSA listserv:

Mac developed an experimental phase equilibrium approach to constrain magma conditions prior to eruption.

He also studied the solubility and speciation of sulfur in magma, mineral barometry, & the kinetics of crystal nucleation & growth.
 
Shared LinkedIn page:
https://www.linkedin.com/posts/venezky_i-write-with-sad-news-which-may-or-may-not-activity-7115486557502902272-UuI_?
#minerals #geology #ExperimentalPetrology #BrownU

Mac Rutherford (Professor Emeritus of Geological Sciences, Brown University) has passed away

Excerpts from Julie Hammer’s announcement on the MSA listserv:

Mac developed an experimental phase equilibrium approach to constrain magma conditions prior to eruption.

He also studied the solubility and speciation of sulfur in magma, mineral barometry, & the kinetics of crystal nucleation & growth.
 
Shared LinkedIn page:
https://www.linkedin.com/posts/venezky_i-write-with-sad-news-which-may-or-may-not-activity-7115486557502902272-UuI_?
#minerals #geology #ExperimentalPetrology #BrownU

#ThinSectionThursday Here's one of my favourite rocks of all time, from Kilfinichen Bay, Mull - a melted shale xenolith in one of the Loch Scridain Sill suite of intrusions. It contains giant pink-colourless (blue-purple) mullite crystals, with small squarer colourless (grey-white) cordierite crystals, enclosed in dark, feathery-textured quenched melt. Field of view about 2mm wide - more info in the Alt text of the images. #Geology #Microscopy #SanidiniteFacies #ExperimentalPetrology

#ThinSectionThursday Here's one of my favourite rocks of all time, from Kilfinichen Bay, Mull - a melted shale xenolith in one of the Loch Scridain Sill suite of intrusions. It contains giant pink-colourless (blue-purple) mullite crystals, with small squarer colourless (grey-white) cordierite crystals, enclosed in dark, feathery-textured quenched melt. Field of view about 2mm wide - more info in the Alt text of the images. #Geology #Microscopy #SanidiniteFacies #ExperimentalPetrology

#ThinSectionThursday Here's one of my favourite rocks of all time, from Kilfinichen Bay, Mull - a melted shale xenolith in one of the Loch Scridain Sill suite of intrusions. It contains giant pink-colourless (blue-purple) mullite crystals, with small squarer colourless (grey-white) cordierite crystals, enclosed in dark, feathery-textured quenched melt. Field of view about 2mm wide - more info in the Alt text of the images. #Geology #Microscopy #SanidiniteFacies #ExperimentalPetrology

#ThinSectionThursday Here's one of my favourite rocks of all time, from Kilfinichen Bay, Mull - a melted shale xenolith in one of the Loch Scridain Sill suite of intrusions. It contains giant pink-colourless (blue-purple) mullite crystals, with small squarer colourless (grey-white) cordierite crystals, enclosed in dark, feathery-textured quenched melt. Field of view about 2mm wide - more info in the Alt text of the images. #Geology #Microscopy #SanidiniteFacies #ExperimentalPetrology

#ThinSectionThursday Here's one of my favourite rocks of all time, from Kilfinichen Bay, Mull - a melted shale xenolith in one of the Loch Scridain Sill suite of intrusions. It contains giant pink-colourless (blue-purple) mullite crystals, with small squarer colourless (grey-white) cordierite crystals, enclosed in dark, feathery-textured quenched melt. Field of view about 2mm wide - more info in the Alt text of the images. #Geology #Microscopy #SanidiniteFacies #ExperimentalPetrology

Thank you Ananya Mallik (@DrRockChef), the MSA Distinguished Lecturer, for a great visit today, speaking on: "How hot and wet is the Moon? Insights and challenges"

#UArizona #McGillUniversity #EarthSystemScience #Moon #ExperimentalPetrology

Thank you Ananya Mallik (@DrRockChef), the MSA Distinguished Lecturer, for a great visit today, speaking on: "How hot and wet is the Moon? Insights and challenges"

#UArizona #McGillUniversity #EarthSystemScience #Moon #ExperimentalPetrology

Thank you Ananya Mallik (@DrRockChef), the MSA Distinguished Lecturer, for a great visit today, speaking on: "How hot and wet is the Moon? Insights and challenges"

#UArizona #McGillUniversity #EarthSystemScience #Moon #ExperimentalPetrology

Thank you Ananya Mallik (@DrRockChef), the MSA Distinguished Lecturer, for a great visit today, speaking on: "How hot and wet is the Moon? Insights and challenges"

#UArizona #McGillUniversity #EarthSystemScience #Moon #ExperimentalPetrology