GRD00XBS0 - Geological Teaching Collection at Scripps

Record #1174 of 5779
GRD00XAS1 GRD00XDS0

IGSN:

GRD00XBS0

Sample ID:

S-227

Sample Type:

Shell Limestone

Sample Age:

Mesozoic › Cretaceous
65.5 - 145.5

Number TS:

Storage:

Ritter 154 › Cabinet 18 › Drawer E

Modifiers:

shell fragments

Notes:

Marble Falls Limestone. Cretaceous. Large shell fragments and bivalve shell impressions. High porosity.

Ancillary Data Notes:

Series:

Location:

Texas
Marble Falls
Latitude: 30.58°
Longitude: -98.27°

Photos:

N/A

Micrographs:

Notes:

Partially preserved shell fragment and sparrite-filled void surrounded by pellets and shell fragments.

Mag:

2.5

Polarized:

plane

Notes:

Partially preserved shell fragment and sparrite-filled void surrounded by pellets and shell fragments.

Mag:

2.5

Polarized:

crossed

Notes:

Mag:

scan

Polarized:

crossed

Notes:

Mag:

scan

Polarized:

plane

Thin Sections:

GRD00XBT0: Sickle-shaped voids (dissolved bivalve shells?) with sparrite lining the walls. A minor amount of shell fragments are preserved, though partially dissolved. 25% pellets. Clusters of dark brown-green minerals in some voids. (C. Eichler)

Documents:

N/A

References:

N/A

Geological Teaching Collection

Geological Teaching Collection

IGSN: GRD00XBS0 Sample ID: S-227 Permalink