26.10.2014 Views

gb 1978.book - Carolina Geological Society

gb 1978.book - Carolina Geological Society

gb 1978.book - Carolina Geological Society

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Stephen A. Kish<br />

Figure 1. Distribution of Late Paleozoic Plutons in the Eastern Piedmont of the Southern Appalachians.<br />

Ruled pattern: Low grade metamorphic rocks, primarily <strong>Carolina</strong> slate belt. Large stippled pattern: Undeformed late Paleozoic plutons<br />

(including nos. 7 and 8). Small stippled pattern: Locally deformed late Paleozoic plutons (including no. 1). Black: Deformed late<br />

Paleozoic plutons (including nos. 2,3,4,5, and 6). Dashed line: Faults. NCF-Nutbush Creek Fault. Dotted line: Coastal Plain-Piedmont<br />

contact. KB-Kiokee belt. RB-Raleigh belt. Tr-Triassic basins. CB-Charlotte belt. KM-Kings Mountain belt. IP-Inner Piedmont.<br />

Information regarding numbered plutons is given in Table 1.<br />

belts are characterized by being fault-bounded and by being<br />

at higher metamorphic grade than adjacent areas.<br />

As the Kiokee belt passed into Georgia, the intensity of<br />

tectonic activity appears to decrease. The Sparta complex<br />

(Figure 1, no. 8) is undeformed. A biotite from this complex<br />

has a K-Ar age (Kulp and Eckelmann, 1961) which is nearly<br />

concordant with the Rb-Sr whole-rock isochron age suggesting<br />

that this granite was emplaced into relatively cold country<br />

rock and is post-metamorphic.<br />

Late Paleozoic plutons of the Raleigh belt are foliated<br />

only along the margin of the belt (Figure 1), possibly where<br />

they are adjacent to the Nutbush Creek fault. Since the character<br />

and extent of this fault zone is uncertain (J. M. Parker,<br />

III, 1977 pers. comm.) the exact nature of late Paleozoic<br />

deformation in this area must await more detailed mapping<br />

and structural analysis.<br />

plutons in the Piedmont of the southeastern Appalachians: submitted<br />

for publication.<br />

Julian, E. L., The Castalia adamellite in Franklin and Nash counties,<br />

North <strong>Carolina</strong>, and the petrogenesis of some associated<br />

aplites and pegmatites (M. S. thesis), North <strong>Carolina</strong> State<br />

Univ., 61 p.<br />

Kulp, J. L., and Eckelmann, 1961, Potassium-argon ages on micas<br />

from the southern Appalachians: N.Y. Acad. Sci. Ann., v. 91, p.<br />

418-419.<br />

Kish, S. A., Fullagar, P. D., Snoke, A. W., and Secor, D. T., Jr.,<br />

1978, The Kiokee belt of South <strong>Carolina</strong> (Part I): Evidence for<br />

late Paleozoic deformation and metamorphism in the southern<br />

Appalachian Piedmont: Geol. Soc. America Abs. with Programs,<br />

v. 10. p. 172.<br />

ACKNOWLEDGMENTS<br />

These studies were supported by NSF Grants DES73-<br />

06495-A01 and EAR77-23277 and the South <strong>Carolina</strong> <strong>Geological</strong><br />

Survey.<br />

REFERENCES CITED<br />

Butler, J. R., 1972, Age of Paleozoic regional metamorphism in the<br />

<strong>Carolina</strong>s, Georgia and Tennessee, southern Appalachians: Am.<br />

Jour. Sci., v. 272, p. 319-333.<br />

Fullagar, P. D., 1971, Age and origin of plutonic intrusions in the<br />

Piedmont of the southeastern Appalachians: Geol. Soc. America<br />

Bull., v. 82, p. 2845-2862.<br />

Fullagar, P. D., and Butler, J. R., 1978, 325 to 265 m.y.-old granitic<br />

42

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!