Browse Items (1651 total)

1:24000

1:250000

1:250000

1:62500

1:62500

1:62500

1:62500

1:62500

1:62500

1:24000

1:24000

1:24000

1:24000

Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Order: Family: Genus: Species:

Coarse grained mainly quartz sandstone with minor lithic and mud incorporated. Cross bedding present. Note the larger grain size of the sample, as well as the grains composed of conglomerate material indicating reworking of older sediments. Present…

Macroscopic: Leucocratic biotite, muscovite, sillimanite gneiss. A banded gneiss characterized by leucocratic minerals. Microscopic: thin section shows an abundance of muscovite and quartz. Thin section pictures in XPL unless otherwise noted in the…

Kingdom: Animalia Phylum: Porifera Class: Sclerospongea Order: Family: Genus: Species:

Hand Sample: Lapilli tuff containing pieces of pumice (HA-23) and trachyte obsidian (HA-22) ranging in size from 0.1cm to 1.5cm. Clasts are held together in light-colored ash. Sample surface crumbles when handled. Lapilli describes the size of the…

1:62500