# thinsectionthursday geology anatexis microstructures migmatites hot_rocks migmatitemonday petrology rocks micro rock science minerals petrography garnet teamgarnet mincup2019 granulite biology evolution bugs entomology

(scientific)
Pseudomorphs after melt films: When there's little doubt this rock from the Kerala Khondalite Belt was once partially melted.

7 51
2022-10-20

Land of the Lustrous Crossover AU with the main Jojos. Jonathan (Sapphire), Joseph (Bahianite), Jotaro (Black Moissanite), Josuke (Purple Diamond), Giorno (Chrysoberyl), Jolyne (Chrysotile), Johnny (Yellow Topaz), and Gappy (Migmatite).

4 25
2022-02-22

(what a nice new hashtag1)
In places it may be obvious, but you should always ask: "Has this rock ever been partially melted?"
can answer: euhedral crystal faces; pseudomorphs after melt films; nanogranitoids.

21 107
2021-03-15


The 3 most reliable microstructural criteria for the former presence of melt in a migmatite: crystal faces, pseudomorphs after melt films and nanogranitoids.
The is a granulite from the KKB of India.
microscope

15 66
2020-05-15


is the most useful and reliable host for studying nanogranitoids!

3 8
2019-09-08

Found two Inflated Beetles (Cysteodemus armatus) adapted to local geology. Black one on basalt lava flows at Amboy Crater, CA. Light one on quartz-bearing migmatites in the San Jacinto Mountains, CA.

0 9
2019-05-19