CM-1979-001-00_other

THE JOHNS HOPKINS UNIVERSRY ,`GEDTNEfZ/fif}C VP��O�-19
APPLIED PHYSICS LABORATORY )�6p? FEFE,?ENCF- G N r
LAUREL. MARYIAND
III. STATE FUEL PRODUCTION (1973) (C-6)
Trillion
Type Number Units Btu
Coal mines
0
0
thousand
tons 0
Natural gas (liq.)
0
0
thousand
bbl 0
Natural gas wells
0
0
million
cu. ft. 0
Crude oil wells
0
0
thousand
bbl 0
IV. GEOLOGY
The surface of the basement complex to the north of Wilm-
ington dips to the southeast attaining a maximum onshore depth
of approximately 10,000 ft. in the vicinity of Cape Hatteras.
Coastal plain sediments, which range in age from Cretaceous to
Recent, form a southeasterly thickening -,wedge that overlies the
Precretaceous basement complex. An onshore positive basement
structure, trending northwest -southeast, is the dominant struc-
tural feature south of Wilmington. This feature, the Cape Fear
Arch, is covered by a thin (about 1500 ft.) veneer of sedimentary
rocks.
V. RESOURCE DATA
The DOE/DGE sponsored geothermal drilling program drilled
eleven 1000 ft. gradient holes in the North Carolina coastal plain.
The geothermal gradients varied from 220C/km to 41OC/km (1.2°F/
100 ft. to 2.20F/100 ft.). Since the depth to basement is 2000
to 3000 ft. over much of the coastal plain, estimates of tempera-
tures at basement are modest, i.e., 30°C to 44°C (86 to 112°F).
However for several holes on the mainland, to the west of Cape
Hatteras, and where the depth to basement is 4000 to 5000 ft.,
temperatures at basement are estimated to be as high as 85°C
(185°F) (3).
VI. GEOTHERMAL ACTIVIES
The geothermal gradient test holes sponsored by the DOE/DGE
drilling program have been completed and the results have been
assessed by VPI&SU. APL/JHU has conducted and published a study
of the energy markets in the northern coastal region of the state
(6). APL has forwarded information to a utility (Carolina Power
and Light) cn the nature and prospects for geothermal energy.
VII. LEGAL ACTIVITIES
NCSL may conduct a workshop for state legislature to con-
sider geothermal legislation.
NC-2

THE JOHNS HOPKINS UNIVERSITY
APPLIED PHYSICS LABORATORY
LAUREL. MARYLANO
10. Environmental Impact Assessments, Division of Budget
Management, 116 W. Jones St., Raleigh, NC 27603, Crys
Baggett, Clearinghouse Supervisor, [phone].
11. State Coupled Reservoir Assessment Program, VPI&SU,
Blacksburg, VA 24061, Prof. John Costain, Geothermal
Program, [phone].
REFERENCES AND LIST OF SIGNIFICANT REPORTS
(1) P. M. Brown, J. A. Miller, and F. M. Swain, "Structural
and Stratigraphic Framework and Spatial Distribution
of Permeability of the Atlantic Coastal Plain, North
Carolina to New York," U.S.G.S. Professional Paper 796,
1972.
(2) "Evaluation and Targeting of Geothermal Energy Resources
in the Southeastern United States,,Progress Report
Oct 1, 1978 - March 30, 1979," VPI&SU, Blacksburg, VA,
DOE Report VPI-SU-5648-5.
(3) "Geothermal Resources of the Eastern United States,"
Gruy Federal, Inc., Arlington, VA, DOE Report DOE/ET/
28373-T2.
(4) "Geothermal Energy Market Study in the Atlantic Coastal
Plain, Definitions of Markets for Geothermal Energy in
the Northern Atlantic Coastal Plain," APL/JHU GEM-002
(QM-80-075), May 1980.
COMMON REFERENCES
(C-1) , (C-4) , (C-5) , (C-6) , and (C-7) .
NC-4

THE JOHNS HOPKINS UNIVERSITY
APPLIED PHYSICS LABORATORY
LAUREL. MARYLAND
`-,�Hampton v
• -`Virginia Beach
•
c lxkr-
ty
LQ ♦ Kinston
Moorehead City
oAt
?c
NH /'
•/Wilmington
Hatteras
0 25 50
Miles
•. Drill hole locations
♦ Key towns and cities
included for reference
Locations of gradient test holes Eastern North Carolina.
NC-5

fANLE C-3.1
ESTIMAIED
BASEMENT
S11;tFACE
HOLE LATITUDE LONGITUDE
INTERVAL(M)
GRADIENT SIGMA(REGR#
N)
COND SIGNA(N)
HEAT FLOW
DEPTH TEdPERATURE
13w-T-1-7
('C/KM)
(K11) ('C)
SOUTHPORTr N.C.
C14A 33 58.00 77 58.20
60-463
32 *
.465
32
WILMINGTON# N.C.
28
C14 34 12.00 77 53.40
45-380
29 *
.385
SNEADS FERRYr N.C.
31
U15A 34 31.60 77 27.30
30-475
31 *
,475
JACKSONVILI.Er N.C.
31
C15 34 39.00 77 19.00
50-500
30 *
•JOS
KINSTON# N.C.
21
C16A 35 15.70 77 35.30
69-217
23 *
.210
CHERRY POINTr N.C.
36
C16 34 54.70 76 53.30
80-308
22 *
.84
PEAUFORTr N.C.
1.36
51
C17 34 46.30 76 38.70
45-302
25 *
ENGLEHARD# N.C-
1.84
81
Cie 35 31.20 75 59.26
49-304
36 *
STUMPY POINTr N.C.
40 #
1.94
1.78
85
1w
C19 35 45.12 75 47.65
53-269
187.1-221.7
57.05f0.77(0.988r
68)1
3.3+0.18(14)
1.9f0.1
p
196.7-205.8
60.0116.71(0.842r
17)2
3.3t0.18(14)
2.0f0.3
248.1-296.3
54.1411.38(0.966#
56)3
3.910.91(15)
2.110.6
ELIZABETH CITY# N.C.
44
C20 36 16.81 76 12.58
50-313
31 *
.95
C M T�I-7
PELLCROSSr N.C.
1.22
55
C21 36 19.59 76 03.54
23-308
33 *
CREEDS+ VA.
C22 36 36.38 76 00.43
89-307
34 *
1.08
50
OCEANA# VA.
49
C23 36 48.09 76 02.62
75-296
38 *
.94
NORFOLKr UA.
C24 36 57.40 76 16.20
17-316
37 *
1.34
152.4-173.3
44.1440.57(0.994#
41)2
3.410.45(25)
1.5fO.2
161.7-174.3
49.0011.64(0.975r
25)2
3.410.45(25)
1,710.3
252.8-316.7
24.7510.04(1.0009124)l
3.710.96(12)
0.9+0.2
303.2-308.5
29.1312.17(0.957#
10)2
3.710.96(12)
1.110.4
SUFFOLKr VA.
C25 36 51.01 76 29.83
21-307
43 *
1.44
37
39
(p57l�IN,J.K.,
LO d SlNHe4 �4. K . Iq�. 295 . 8- 309 . 9
C� VEK, L•�,ar+ �,
26.8510.39(0.996t
23) 1
5.Of 1 .04 (24 )
1.410.3
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