GROUND WATER IN NORTH-CENTRAL TENNESSEE

U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 640 PLATE 4
bbaccoport
(Cuba Landing
Buinpus Mills
Base enlarged from U. S. Geological Survey base map of Tennessee compiled in 1911 and 1912,
with corrections from topographic maps by the U. S. Geolcgical Survey and from county
traverse maps by the Tennessee Geological Survey, during the period 1912 1927
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eaversi
Store
Indian Mound
Cumberlan
1 Reconnaissance geology by O.P.Jenkins
Z Reconnaissance geology by BruceWade
3 Geology by C.WHayes and E.O.UIrich
4 Geology by R.S.Bassler
5 Geology by J.J.Galloway
6 Geology by E.O.UIrich and R.S.Bsssler
St Bethlehem
ThomasviHe
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GEOLOGIC MAP OF NORTH-CENTRAL TENNESSEE, SHOWING LOCATION OF WELLS AND SPRINGS
Scale 250,000
5
1932
10 15 MILES
WILLIAMS A HEINTZ CO,WASH.D.C.
Geology compiled by A. M. Piper from detailed geologic maps by R. S. Bassler, J. J. Galloway,
C. W. Hayes, and E. 0. Ulrich, also from the third edition of the geologic map of Tennessee
by the Tennessee Geological Survey, with minor adjustments to the corrected base
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EXPLANATION
UNCONSOL1DATED ROCKS
(Gravel, sand, and silt, composing flood plains of major
streams; deposits on secondary streams not mapped)
Terrace deposits
(Hounded to subangular gravel, sand, and silt on river
terraces; locally several hundred feet above present
Eutaw formation
(Red micaceous sand with interstratified layers of clay
Tuscaloosa formation
(Gravel derived from chert of Mississippian rocks.
with little sand and clay)
UNCONFORMITY
CONSOLIDATED ROCKS
St. Louis limestone and Warsaw formation
(Massive fine-grained gray to blue limestone (St. Louis)
above; thick-bedded coarsely crystalline sandy or
cherty limestone (Warsaw) below. Both weather to
reddish clay with loose chert fragments)
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Fort Payne ("Tullahoma") formation
(Siliecowi ahale, chert, flint, and cherty crinoidal lime­
stone of'extremely variable character; progressively
more argillaceous from west to east)
New Providence, Ridgetop, and
Chattanooga shales
(Limestone and greenish clay shale (New Providence a-nd
Ridgetop) above and carbonaceous black shale (Chatta­
nooga) below)
UNCONFORMITY
Pegram limestone
(Thick-bedded light-gray limestone with coarse-grained
sandstone at base locally ; forms small violated outcrops)
Camden chert
(Alternating layers of dense bluish-gray limestone and
yellowish chert; known at only two localities in south­
ern Humphreys County)
UNCONFORMITY
Harriman (?) chert
(White, gray, and buff nonfossUiferous chertv limestone,
known only in the Wells Cresk Basin, Stewart County)
Birdsong limestone
(Thin-bedded cherty fossHiferous limestone; known only
in the Wells Creek Basin)
UNCONFORMITY
Decatur limestone
(Thick-bedded light-gray relatively pure limestone)
Lobelville formation
(Thin-bedded earthy limestone and variegated shale)
Bob formation
(Massive pure limestone and variegated shale)
Beech River formation
(Calcareous shale and shaly cherty limestone)
Dixon limestone
(Earthy red limestone and red and purple shale)
Lego limestone
(Compact light-gray miitcrystalline limestone)
Waldron shale
(Light-gray shaly limestone)
Laurel limestone
(Massive purple and reddish limestone)
Osgood limestone
(Thi-n-beddrd compact light-gray, blue, or reddish
earthy limestone)
Brassfield limestone
(White or blue cherty fossiliferous limestone)
Fernvale formation
(Soft green or chocolate-colored shale with bands of
crystalline limestone)
Arnheim formation
(Blue granular crystalline limestone and interbedded
shale)
UNCONFORMITY
Leipers limestone
(Knotty earthy limestone and interbedded shale, or gran­
ular crystalline limestone without shale)
Catheys limestone
(Knotty earthy limestone and shale with thick bands
of impure blue limestone)
Cannon limestone
(Massivs pure dove-colored and gray limestone, also
argillaceous cherty blue limestone)
Bigby limestone
(Mainly granular crystalline gray or brown laminated
and cross-bedded phosphatic limestone)
Hermitage formation
(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 flaggy blue-gray sandy and earthy
limestone, calcareous sandstone, and shale)
Lowville limestone
(Massive compact white or light-blue cherty limestone
(Carters limestone member) with thin-bedded dovecolored
limestone and yellowish-gray shale at top)
Lebanon limestone
(Thin-bedded compact bluish or dove-colored limestone)
Ridley limestone
(Massive fine-grained blue-gray cherty limestone)
Pierce and Murfreesboro limestones
(Thin-bedded blus or drab brittle limestone with local
thick beds of bluish-brown coarse crystalline limestone
(Piercs) overlying massive brittle drab cherty limestone
(Murfreesboro))
UNCONFORMITY
Limestone of Beekmantown age
(Light-gray fine-grained cherty magnesian limestone)
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Nonflowing well
(Number refers to description in text and
in tabulated well data)
Flowing well
Spring
Well or spring for which water
analysis is tabulated in text
Middle and Lower
Devonian, Silurian,
and Upper Ordovician
undifferentiated
Upper and Middle
Ordovician
Ordovician
undifferentiated
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