Wei Liu

4 Questions 25 Answers 0 Followers

Questions related from Wei Liu

Why were so many ferromagnesian minerals included in the plagioclase phenocrysts?

Attached is a photomicrograph of gabbro. In the center a plagioclase phenocryst occurs that includes many clinopyroxene and hornblende minerals. The phenocryst was albitized. The matrix around the...

06 August 2015 2,357 7 View

How do you distinguish metamorphic amphibole from magmatic hornblende?

My samples were collected from a suite of metamorphic basic intrusive rocks that include plagioclase amphibolite shist, troctolite and anorthosite. These rocks consist of hornblende, plagioclase...

08 November 2014 8,049 10 View

Why does calcite coexists with quartz in the microgranular enclaves that are hosted by monzonite?

The mafic microgranular enclaves consists of plagioclase laths and chlorite. The presence of skeletal augite within chlorite suggests that the latter were altered from augite. The quartz and...

31 October 2014 5,419 10 View

Can someone suggest a reference that describes and explains mafic magmatic enclaves hosted by another mafic magmatic enclave in granodiorite?

I have several specimens that contain millimeter-sized mafic magmatic enclaves hosted by centimeter-sized mafic magmatic enclave in granodiorite and want to know their genesis.

20 November 2013 4,232 2 View