Skip to main content
Geneseo Geoscience Collections
Search using this query type:
Keyword
Boolean
Exact match
Search only these record types:
Item
File
Collection
Exhibit
Exhibit Page
Simple Page
Advanced Search (Items only)
Browse Items
Browse Collections
About
Browse Items (41 total)
Browse All
Browse by Tag
Search Items
Collection: (SE) Southeastern Igneous Suite -- Southeastern United States
Page
of 3
Next Page
Sort by:
Title
Creator
Date Added
Adamellite
Quartz and feldspar appear to be shattered
Anorthosite
Mined and marketed under the name "Aplite"
Augite Syenite
Contains augite, amphibole, plagioclase, ziron, opaques, and a fine-grained alteration product (unknown)
Balsatic Tuff
Sample comes from flow rocks that are associated with lithic fragment tuffs, pyroxene and chlorite are present as an interstitial material
Biotite Granite
Biotite is variable in amount, but it is always evenly distributed
Diabase
Shows considerable fracturing, thin section examination shows ophitic texture
Diabase
Ophitic texture in thin section, plagioclase exhibits some alteration to sericite
Diabase
Ophitic texture in thin section, some opaques
Diabase
Quarred for monumental stone, ophitic texture in thin section, minor amount of opaques
Diorite
Mostly plagioclase and biotite
Diorite
Much of the plagioclase has been altered to epidote and sericite, hornblende occurs as long prismatic crystals arranged in sprays
Dunite
Contains secondary products of alteration including serpentine, talc, chlorite, carbonates, and iron oxides
Elberton Granite (Adamellite)
Eurite
Contains inclusions of relict gabbro
Gabbro
Fedlspar is cream-pink colored and much has been altered to sericite/epidote
Gabbro
Rock may have undergone some alteration
Gabbro
Amphibole, epidote, chlorite, quartz, calcite, and clinozosite present are thought to be alteration products
Gabbro
Rock appears to be hydrothermally altered, sample is taken from a sill and is source of basaltic tuffs in area
Gabbro
Rock has been subjected to alteration and shear forces, the garnet present is probably an alteration product
Graphic Granite
Exhibits a runic texture, the kind that is found in feldspar mining operations (undesirable due to high amount of quartz)
Page
of 3
Next Page
Output Formats
atom
,
dcmes-xml
,
json
,
omeka-xml
,
rss2