|
Gwinnett County Norcross Quadrangle |
"Site Photographs - Detail"
![]()
|
Photograph - Dr. David
Babulski
![]() Lens of Kaolinite conformal with the amphibolite. This lens is 14 inches in width. |
|
Photograph - Dr. David
Babulski
![]() View looking South at right angles to the trend line of folding in the rocks. This view shows a long contorted quartz lens which follows the general north east plunge of the major folds in the amphibolite. |
|
Photograph - Dr. David
Babulski
![]() Close-up of the lower portion of the quartz lens showing pyrite blebs along the center of the quartz body. |
|
Photograph - Dr. David
Babulski
![]() Close-up of a quartz lens. At its thickest portion, the quartz lens measures 3.5 inches in width. Note the presence of pyrite as films and irregular blebs in the white quartz. |
|
Photograph - Dr. David
Babulski
![]() View along the axis of the north east fold trend line. On the right hand limb of the folds (shown by the arrow) is a quartz epidote pod that exhibits en echelon fracture. |
|
Photograph - Dr. David
Babulski
![]() Close-up detail of the quartz epidote pod shown above. The fracture has created vugs which have allowed the Hornblende and epidote crystals to grow much larger. Hornblende crystals to 0.5 inches in length are present in these vugs. Similar fracture created vugs in quartz epidote pods at site "A" have yielded striking specimens of epidote and piemontite. |
|
Photograph - Dr. David
Babulski
![]() Lenses and pods of Kaolinite interbeded with the fine-grained amphibolite. The rock hammer is show for scale. |
|
Photograph - Dr. David
Babulski
![]() Quartz epidote pod interbedded with fine grained amphibolite. Rock hammer is show for scale. |
|
Photograph - Dr. David
Babulski
![]() Quartz epidote pods in fine grained amphibolite. |
|
[BACK TO FORMS] |
[GMHP-HOME] [Wolf
Creek-FORMS] [Geological Setting-Sketch]
[Min. Occurance-Sketch]
[Inst. Anal.] [Site
Photo] [Specimen Photo]
E-MAIL ADDRESS: heritage-project@gamineral.org