early to middle carnian (triassic) flora and fauna - SunStar Solutions

6,>4
V
-Yk
volley; (2) tlre l'urkey Banch Folmation, which
€ither conformablv or unonfonnably orerlies the
Tuckahm For.ndtien; and (3) thL' Oherdale Fouro.
tion, which is scparated from thc underlying lirr-
Pzpg
Pzpe
-tJ of,"
FICHMOTID BASIN
VIRGINIA
dlabseedlk€3
\
.r. buricd toull
4srtaco foull
mxyla!
iIEo$obot
laull rone
Formrlion
ggotte.dsle Formation
f
Turk6y BEnch Fm.
WTuckah6
Formation
liig. 3. (;Rlo8ic mip
of the Richmond bssin,
showing probablc dis.
tribution ufliiossic
and pc-Triasic {orma.
lions. l.ocations of
Slop$ 2-d shorvn, Popup
structules and
structuEl foldin8 in
thc northern pfft of
lhe basin arc intcr
ttFted f(om s.ismic
dala. mf! = nrelnfelsic
\alcantrlastics (also
undcrlics the suthern
h.tlf of the b*in);
pE(?)mf = Ilosclry fcl.
si( gneiss, pEm =
Miidens Ctu'iss, pEs
- Sabol Amphibolilej
pEsf = State lrrm
Gntis; Pzbg = tlo(-
$bel CrModioritc;
I'ztcB = Fire Crcek
Mllls Grarritc; Pzfrg =
Flat Rock Gnnite;
fzpg - Petersbur8
Granite (and l,zbg underlie
portions of the
northern hillfof thc
b{si{).
kcy Branch Formation by an cmsional unconfolmit).
or hiatus (Comet and Zcgler. 1985t Cornet,
19894 and 1989b; Edigcr ct al.. in prep.). lhc
Turke], Bmnch lbrmntion (rrrelates in part with