Browse Items (1651 total)

coarse grained, with large tabular slabs of float

Coarse grained, comes from dike-like body in northern part of the quarry

Similiar in composition, texture, and shape to the Concord, North Carolina complex

banded, pink to gray color, sharp contact, some hydrothermal alteration has ocurred

Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: Syringoporida Family: Syringoporidae Genus: Species:

Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: Syringoporida Family: Syringoporidae Genus: Species:

Sandstone shows metamorphic overprinting with triple junctions between quartz grains common.

Both thin section images were taken at a 400x magnification.

1:96000

1:96000

1 inch = 500 kilometers
includes major tectonic plates as well as landmasses

1 inch = 500 kilometers
includes major tectonic plates as well as landmasses

This medium grained facies is one of a number of anorthositic sheets that intrude throughout the stratigraphic section of the southern Adirondacks. A chemical analyses of specimens from this outcrop yield results that are almost identical with…

Hand Sample: Aphanitic vesicular dark gray-black basalt. Sample contains numerous vesicles ranging in size from 0.01cm to 1.5 cm.

Hand Sample: Apahanitic vesicular dark gray-black basalt. Larger (

Hand Sample: Aphanitic vesicular dark gray-black basalt with larger light crystals throughout the sample. The vesicles throughout the sample are elongate in shape, and range in size from 0.5 cm to 2.5 cm. Sample surface displays rough AA texture.

Hand Sample: Aphanitic dark gray vesicular basalt. Basalt has ropey pahoehoe texture on top surface and contains numerous elongated vesicles.

Hand Sample: Aphanitic medium gray vesicular basalt with scattered olivine crystals. Olivine crystals are commonly growing either in clusters or as one single crystal. Vesicles are found throughout sample and range in diameter from 0.05cm to 2cm.

Hand Sample: Aphanitic dark gray vesicular basalt. The vesicles are uniform and common throughout the sample, with diameters of approx. 0.05 cm.