Data from Stratigraphic Test Holes Drilled at the U.S. Marine Corps Air Station, Cherry Point, North Carolina, 1994–2001, and Periodic Water Levels, 2000–2003

Open-File Report 2004–1434
By Beth M. Wrege and Philip S. Jen

Strat-3

Map showing location of Strat-3 well

Core interval and recovery from Strat-3 test hole

Lithologic log for Strat-3 test hole

Selected borehole geophysical logs collected in Strat-3 test hole

Strat-3 monitoring-well construction report

Periodic water levels in Strat-3 monitoring well

Hydrograph showing ground-water levels in Strat-3 monitoring well, February 2001–August 2002

Figure 12. Location of Strat-3 well at U.S. Marine Corps Air Station, Cherry Point, North Carolina.

**Table 7.** Core interval and recovery from Strat-3 test hole, U.S. Marine Corps Air Station, Cherry Point, North Carolina.
Cored interval, in feet	Recovery, in feet
10 – 12	1.7
20 – 22	1.2
28 – 30	1.3
40 – 42	1.2
50 – 52	1.5
60 – 62	1.7
66 – 67	2.0
70 – 72	1.3
80 – 82	2.0
90 – 92	1.3
100 – 102	1.7
110 – 111	1.1
120 – 122	1.2
130 – 131	1.1
140 – 142	2.0
150 – 151	0.5
173 – 175	1.1
Total = 30	23.9

**Table 8.** Lithologic log for Strat-3 test hole, U.S. Marine Corps Air Station, Cherry Point, North Carolina.

[ft, feet; mm, millimeter]
Depth below land surface (in feet)	Description (compiled by B.M. Wrege)
0.0 – 2.0	Tan, sandy SOIL.
2.0 – 3.0	No sample.
3.0 – 10.0	Gray CLAY, alternating with thin sand layers.
10.0 – 13.0	Fine, well-sorted gray SAND.
13.0 – 20.0	No sample.
20.0 – 22.0	Dark gray CLAY and medium to coarse gray SAND layers.
22.0 – 30.0	No sample.
30.0 – 32.0	Dark gray CLAY and alternating yellow well-sorted SAND layers.
32.0 – 40.0	No sample.
40.0 – 42.0	Medium yellow SAND.
42.0 – 50.0	No sample.
50.0 – 52.0	Yellow-orange SAND, fine to medium, well-sorted with ochre stain, hard.
52.0 – 60.0	No sample.
60.0 – 62.0	Greenish-gray SAND to fine gray sand.
62.0 – 70.0	Fine to coarse SAND, phosphate pellets.
70.0 – 71.0	Very fine, well-sorted gray SAND, very hard.
71.0 – 80.0	No sample.
80.0 – 82.0	Fine, well-sorted greenish-gray SAND.
82.0 –90.0	SAND with shell fragments.
90.0 – 91.7	Fine gray SAND to light-gray calcareous sand.
91.7 – 100.0	Gray CLAY and shell fragments from 93 to 96 ft, abundant shell fragments.
100.0 – 102.0	Light-gray medium SAND, calcareous with shell fragments.
102.0 – 110.0	Medium-to-coarse sand-sized SHELL fragments.
110.0 – 110.5	Medium-to-coarse SAND with calcareous cement, some phosphate, light gray.
110.5 – 113.7	Coarse SAND, phosphate grains and shell fragments, drills alternately hard and soft.
113.7 – 114.5	No sample, drills hard.
114.5 – 119.0	Coarse SAND, 2–3 mm, well-rounded, some phosphate grains, less shell than above.
119.0 – 120.0	No sample, drills harder.
120.0 – 121.6	Cemented SAND, hard, with shell fragments, grades to clean gray well-sorted fine sand.
121.6 – 130.0	No sample.
130.0 – 130.5	Fine, well-sorted gray SAND, no fossils.
130.5 – 140.0	Shell fragments, clay balls, phosphate grains, quartz grains, and organic fragments.
140.0 – 140.4	Fine gray well-sorted SAND with small, 3- to 6-mm pebbles, hard.
140.4 – 150.0	SHELL fragments.
150.0 – 150.3	Very fine, clean gray SAND with heavy minerals.
150.3 – 160.0	SAND, some shell fragments.
160.0 – 173.4	SHELL fragments.
173.4 – 174.7	Large SHELL fragments in greenish, silty, fine gray SAND matrix; switched to roller cone.
174.7 – 177.0	No sample.
177.0 – 180.0	Broken SHELL, balls of gray slick clay, phosphate grains.
180.0 – 183.0	No sample.
183.0 – 184.6	Fragments of phosphate and shell, quartz pebbles, 2–5 mm, a few dark-gray clay balls.
184.6 – 188.0	SHELL fragments, a few fragments of voidic limestone.
188.0 – 191.0	No sample.
191.0 – 192.0	LIMESTONE, sample from wash, almost entirely fragments of voidic limestone, a few shell fragments and a few quartz and phosphate pebbles 3–6 mm, well rounded.
192.0 – 198.0	No sample.
198.0 – 199.0	LIMESTONE, a few shell fragments.
199.0 – 202.0	No sample.
202.0 –204.0	LIMESTONE, light tan and light-gray voidic limestone.

Figure 13. Selected borehole geophysical logs collected in Strat-3 test hole, U.S. Marine Corps Air Station, Cherry Point, North Carolina.

Figure 14. Strat-3 monitoring-well construction report, U.S. Marine Corps Air Station, Cherry Point, North Carolina.

**Table 9.** Periodic water levels in Strat-3 monitoring well, U.S. Marine Corps Air Station, Cherry Point, North Carolina.
Date	Water level, in feet below land surface
02-09-2001	14.09
05-03-2001	16.11
08-09-2001	16.14
03-29-2002	16.00
05-15-2002	16.38
08-16-2002	17.11

Figure 15. Hydrograph of ground-water levels in Strat-3 monitoring well, U.S. Marine Corps Air Station, Cherry Point, North Carolina, February 2001–August 2002.

Abstract || Introduction || Methods || Test Hole Descriptions || Seismic Data || Marine Seismic Data || Land Seismic Data || Summary || References || Appendix

Return to the	OFR 2004-1434 Home Page
	North Carolina District Home Page

Accessibility FOIA Privacy Policies and Notices
U.S. Department of the Interior, U.S. Geological Survey Persistent URL: http://pubsdata.usgs.gov/pubs/of/2004/1434/strat3.html Page Contact Information: USGS Publishing Network Last modified: Saturday, January 12 2013, 11:40:43 PM