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Lithologic Interval Details

Well Name X-Coord
(feet)		 Y-Coord
(feet)
W-17454 427996 631068

Min.
Depth
(feet)		 Max.
Depth
(feet)		 Primary Rock %
Primary
Rock		 Primary Color Induration %
Porosity		 Comments
7 8.19 LIMESTONE YELLOWISH GRAY GOOD Previous FGS row comment: Previous FGS row comment: PUSHED CORE - APPEARS TO BE FILL TO 6 FEET THEN SAND WITH RUBBLE, this row:TO 7 FEET., this row: 7 TO 7.3 FEET RUBBLY. SAND VERY FINE. RECRYSTALLIZED GRAINSTONE - PACKSTONE. ABUNDANT CHIONE CANCELLATA.
8.19 8.69 LIMESTONE MODERATE DARK GRAY GOOD FRESH WATER LIMESTONE. VERY IRREGULAR BEDDING DUE TO BIOTURBATION .FRESH WATER MOLLUSKS. MATRIX IS ORGANIC RICH.
8.69 9.5 LIMESTONE YELLOWISH GRAY GOOD VOIDS FILLED WITH FRESH WATER LIMESTONE.
9.5 13 LIMESTONE YELLOWISH GRAY MODERATE 10 POOR RECOVERY. SOFT WITH HARD LENSES. MOLDS ABUNDANT. MOLLUSK FRAGMENTS. LOST 10 TO 13 FEET.
13 23 LIMESTONE DARK GRAYISH YELLOW GOOD VERY HARD CAPROCK PIECES RECOVERED BETWEEN 13 AND 23 FEET. SOFT ZONES LOST EXCEPT BETWEEN 20 AND 21 FEET. SOFT SLIGHTLY SANDY FOSSILIFEROUS LIMESTONE. FORAMS AND MOLLUSKS PRESENT.SOME HARD LIMESTONE APPEARS TO BE RECRYSTALLIZED BURROW FILL.
23 34.29 LIMESTONE YELLOWISH GRAY POOR 30 HARD ZONES SCATTERED IN SOFT MATRIX. FRAGMENTS OF OYSTERS. MORE MOLDIC, BETTER INDURATED ZONES AT 27 - 29.3 FEET. GENERALLY A GRAINSTONE.
34.29 34.7 NO SAMPLE
34.7 41 LIMESTONE YELLOWISH GRAY MODERATE 35 END OF CORE RUN 37.2 - 38 FEET CALCILUTITE MATRIX IS AN ARTIFACT OF DRILLING.
41 41.7 LIMESTONE YELLOWISH GRAY GOOD 20 ABUNDANT TURRITELLID MOLDS.
41.7 50.5 LIMESTONE YELLOWISH GRAY GOOD 35 INTERVAL VERY MOLDIC.
50.5 55.2 LIMESTONE YELLOWISH GRAY MODERATE 30 VARIABLE SAND CONTENT RANGING TO 30%. LOTS OF ORIGINAL SHELL. FEWER MOLDS.
55.2 80 LIMESTONE WHITE GOOD 35 INTERVAL VERY MOLDIC. VARIABLE SAND CONTENT INCREASING BETWEEN 78 AND 80 FEET, AND GRADES INTO UNDERLYING UNIT.
80 82 LIMESTONE VERY LIGHT GRAY MODERATE 35
82 90 LIMESTONE YELLOWISH GRAY POOR CALCAREOUS SAND WITH QUARTZ SAND. VERY MICROFOSSILIFEROUS. POOR RECOVERY. QUARTZ SAND IS VERY FINE GRAINED AND GRADES INTO UNDERLYING SAND.
90 121.5 SAND (QUARTZ) YELLOWISH GRAY POOR POOR RECOVERY. VERY MICROFOSSILIFEROUS. GRADES TO A CALCAREOUS SAND AT 90 FOOT INTERVAL. FIRST QUARTZ PEBBLE AROUND 97.5 FEET. COARSER GRAINS INCREASE 118 - 120 FEET.
121.5 123 DOLOMITE LIGHT OLIVE GRAY GOOD IRREGULAR CONTACT, SAND INCREASES WITH DEPTH. SAND IS FINE GRAINED AT 121.5 AND BECOMES COARSER TOWARD 122.5 TO 123 FEET. GRADES INTO UNDERLYING SAND.
123 124 SAND (QUARTZ) LIGHT OLIVE GRAY POOR GRADES INTO A CLAY.
124 126 CLAY DARK GREENISH GRAY POOR THIN LAYERS OF SAND AND SILT, BURROW FILL.
126 127 NO SAMPLE
127 127.09 DOLOMITE VERY LIGHT GRAY GOOD THIN DOLOSTONE CAPROCK.
127.09 129 SAND (QUARTZ) YELLOWISH GRAY POOR DOLOMITE CLAY SAND MIX GRADES TO CLAYEY DOLOSILT. VERY POOR RECOVERY.
129 129.1 DOLOMITE YELLOWISH GRAY POOR FILLS BURROWS IN UNDERLYING CLAY.
129.1 129.6 CLAY DARK GREENISH GRAY POOR THIN SILT AND SAND LAMINAE AND BURROW FILL.
129.6 131.8 SAND (QUARTZ) YELLOWISH GRAY POOR PHOSPHATE MAY BE PRIMARY, NOT REWORKED. VARIABLE CLAY CONTENT.
131.8 135 DOLOMITE YELLOWISH GRAY POOR DOLOMITIZED COQUINA OF MOLLUSK FRAGMENTS AND CASTS. POOR RECOVERY
135 137.5 DOLOMITE BLACK GOOD PHOSPHATIZED CAPROCK. VERY POOR RECOVERY. SOFT ZONES WASHED OUT.
137.5 139 DOLOMITE GRAYISH BROWN POOR VERY POOR RECOVERY.
139 145 DOLOMITE YELLOWISH GRAY MODERATE COARSER SAND TO GRAVEL SIZED QUARTZ. MOST SAND IS FINE GRAINED. GRAVEL BECOMES MORE ABUNDANT WITH DEPTH.
145 154 DOLOMITE MODERATE VERY COARSE SAND AND GRAVEL. DISCOID QUARTZ PEBBLES UP TO 2.5 CM. MOLLUSK MOLDIC ZONES.
154 160 NO SAMPLE
160 161.5 SAND (QUARTZ) YELLOWISH GRAY POOR VERY POORLY INDURATED TO UNCONSOLIDATED.
161.5 180 SAND (QUARTZ) YELLOWISH GRAY POOR SOME ZONES OF MORE COARSE QUARTZ SAND. MICA APPEARS AT APPROX. 167.0 FEET. 167 - 180 BOX DROPPED SO IT IS OUT OF SEQUENCE. POOR RECOVERY.
180 185 SAND (QUARTZ) LIGHT OLIVE GRAY POOR THIN MORE CLAYEY LAMINAE INTERBEDDED WITH THIN UNCONSOLIDATED TO VERY POORLY CONSOLIDATED FINE SAND AND SILT.
185 190 SAND (QUARTZ) YELLOWISH GRAY UNCONSOLIDATED SAME AS 185 BUT WITH LESS CLAY. POOR RECOVERY.
190 204 SAND (QUARTZ) LIGHT OLIVE GRAY POOR MORE CLAY LAMINAE WITH DEPTH.
204 206 CLAY LIGHT OLIVE GRAY POOR THIN LAMINAE OF VERY FINE SAND AND SILT.
206 210 SAND (QUARTZ) LIGHT OLIVE GRAY POOR COMMENT SAME AS ABOVE. RECOVERY LESS THAN PREVIOUS INTERVAL. TD

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