GROUND WATER IN NORTH-CENTRAL TENNESSEE

Stratigraphic section for north-central Tennessee Continued to
00
Water-bearing properties
Character of strata
Thickness
(feet)
Formation
Correlation
Series
System
Soft green or chocolate-colored shale with bands
of coarsely crystalline gray and mottled phosphatic
limestone.
Blue granular crystalline limestone with interbedded
shale.
Knotty earthy limestone and interbedded shale,
or granular crystalline limestone without shale.
Knotty earthy limestone and shale with heavy
bands of impure blue limestone.
Massive pure dove-colored and gray limestone,
also earthy cherty blue limestone.
Mainly granular crystalline gray or brown laminated
and cross-bedded phosphatic limestone.
At western edge of Nashville Basin chiefly medium-bedded
sandy and phosphatic subgranular
limestone with local beds of shale. Toward
the northeast and east grades into Saggy bluegray
sandy and earthy limestone, calcareous
sandstone, and shale.
Upper member consists of thin-bedded dovecolored
limestone and yellowish-gray shale.
Lower member (Carters limestone restricted) is
massive compact white or light-blue cherty
limestone.
0-40
Fernvale formation.
Richmond
Upper Or-
0-3
Arnheim limestone.
0-100
Leipers limestone.
Maysville
group.
50-100
Catheys limestone.
0-250
Cannon limestone.
30-100
Bigby limestone.
Trenton
group.
Middle Ordovician.
40-80
Hermitage formation.
Water-bearing properties of the pre-Mississip-
place and are dependent upon (1) solubility
of the rock; (2) intensity of jointing, which
is in turn dependent upon (a) competency of
the stratum, (6) localization of stresses; (3)
geomcrphologic history of the district.
Lower part
of Black
River
group.
Ordovician.
40-110
Lowville limestone.