GROUND WATER IN NORTH-CENTRAL TENNESSEE

CONTENTS
Pager
-Abstract.________________________________________________________ VH
Introduction ______________________________-----_-_-_---____ 1
Purpose and scope of the investigation...________________________ 1
Location and extent of the area______________________.__________ l
Previous geologic investigations.________________________________ 2
Acknowledgments. ____________________________________________ 3
Geography _______________________________________________________ 4
Transportation. ______________________________________________ 4
Natural resources and industries__________________-______-____-_ 4
Climate _..___ ___________________________________________ 5
General features-....___________________________________ 5
Temperature _____________________________________________ 5
Rainfall____________________________________________ 9>
Surface features of central Tennessee._______________________________ 15
Physiographic districts.-_______________________________________ 15
General features._____ ____ ___________--.-__ 15
Highland Rim plateau__»______________________________ 1ft
Nashville Basin_____________________________________ 18
Physiographic history________________________________________ 18
Cumberland cycle-_______-__________-_____-__----_--____-- 18
Highland Rim cycle__________-___________ ____________ 19
NashviHe Basin cycle____--___________________---___-_-_--- 20
General features.______-_-____________-___--_____-_-_- 20
High-terrace stage___________________________________ 21
Peneplain stage.______-_______________-__--__--__-_--- 21
Recent cycle____________________________________________ 22
Drainage system..-.-.....-..........-..--.-...--------^------ 23
Surf ace streams_________________________________________ 23
Underground drainage.________________-____-___--_-_-___-- 24
Stratigraphy _________________________________________________ 24
Sequence and general character of the rocks______________________ 24
Quaternary system___________________________-___---_-_-___-_- 30
Alluvium______________________-______ 30
Tertiary (?) system (Miocene?or Pliocene?)____ __------___--__ 30
High-terrace gravel______________________________________ 30
Cretaceous system.___________________________________________ 31
Upper Cretaceous series__________________________________ 31
Eutaw formation____________________________________ 31
Tuscaloosa formation._________________________________ 31
Carboniferous system________________________________________ 3$
Mississippian series______________________________________ 33;
St. Louis limestone-__-_______-_----------------------- 33;
Warsaw formation____________________________________ 34r
Fort Payne formation.______________-__-----___-_-_--_ 35-
New Providence shale-___-____-__________--------_---- 37
Ridgetop shale______________________________________ 38-
HI