| Min.Depth(feet) |
Max.Depth(feet) |
Primary Rock |
%PrimaryRock |
Primary Color |
Induration |
%Porosity |
Comments |
| 0 |
7.5 |
SAND (QUARTZ) |
|
|
UNCONSOLIDATED |
|
VARYING COLOR AND VARIABLE ORGANIC CONTENT. |
| 7.5 |
7.8 |
SAND (QUARTZ) |
|
BROWNISH GRAY |
POOR |
|
|
| 7.8 |
10 |
SAND (QUARTZ) |
|
|
POOR |
|
SHELL? FRAGMENTS AND WHOLE SHELLS 8-10 FEET. |
| 10 |
25 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
UNCONSOLIDATED |
|
UNFOSS. EXCEPT FOR ONE THIN ZONE AT 11' W\SHELL FRAGS. AND CLAY, ANOTHER AT 16.75-17'. COLOR VARIABLE MOD. GRAY TO LGT BROWNISH GRAY. DARK GRAINS-HEAVY MINS? PHOS? <1%. LOOKS BIOTURBATED. |
| 25 |
47.7 |
SAND (QUARTZ) |
|
GREENISH GRAY |
POOR |
|
25-27.75' MORE CLAY; SMALL AMOUNT OF CARBONATE PRESENT, PROBABLY REMNANTS OF SHELL FRAGS(BADLY LEACHED) INCREASE IN ABUNDANCE W\DEPTH, ALSO BECOME LESS LEACHED. BARNACLE FRAGS PRESENT. MINOR PHOSPHATE. |
| 47.7 |
50 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
LOOKS LIKE "LEAN GREEN"; FEW DISCOID GRAVEL PEBBLES PRESENT. ABUNDANT SHELL FRAGS., FEW WHOLE SHELLS, ABUNDANT TURRETELLIDS AT 50'; BARNACLES,PECTEN FRAGS. |
| 50 |
57 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
CARBONATE CONTENT INCREASES FROM ABOVE. SOME ARAGONITIC SHELL FRAGS. PRESENT. LITHOCLASTS OF HARDENED SANDSTONE. SOME FRESH WATER SNAILS AT 50'. FORAMS? CARB. MUD CONTENT HIGHEST 54-57', SAND IS MORE COARSE. |
| 57 |
59 |
NO SAMPLE |
|
|
|
|
|
| 59 |
73 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
UNCONSOLIDATED |
|
CUTTINGS; POOR TO UNCONSOLIDATED. SOME GRAVEL, PHOS. MOSTLY COARSE SAND TO GRAVEL SIZE(BLACK), FEW LITHOCLASTS OF PEACE RIVER LOOKING ROCK. FEW SHELL FRAGS. SAMPLES IN CUTTINGS BAGS SEEM TO GET MORE COARSE OVERALL TO 70 OR 71' THEN MORE FINE. SAND OCCURS MIXED WITH THE COARSE. GRAVEL (V.C. SAND) IS MILKY IN COLOR. |
| 73 |
74.8 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
UNCONSOLIDATED |
|
COLOR RANGES FROM LT-MOD. GRN GRAY TO LT BRN. GRAY.. MINOR GRAVEL. POOR TO UNCONSOLIDATED. |
| 74.8 |
142 |
SAND (QUARTZ) |
|
MODERATE GRAY |
POOR |
|
LOOKS LIKE GOOD PEACE RIVER. CLAY CLASTS PRESENT. SOME THIN ZONES ARE V.C. W\MINOR FINER SIZES.; MORE COARSE BETWEEN 82-89'(IN CUTTINGS BAGS), THEN AS 81'. MANY BURROWS FILLED WITH CLEAN QTZ SAND 89-94'. SAND BECOMES FINER GRAINED ON AVERAGE BELOW 90' (F-M W\ FEW COARSE GRAINS) THEN LOSES COARSE GRAINS ALTOGETHER BY 95'. GRADES INTO VF-F SAND W\ PHOS. 1-2%. THIN CLAY BEDS. VC CAVINGS ON OUTSIDE OF CORE 113-115.5' SAMPLES ABSENT 117-122' BUT SAME BELOW. |
| 142 |
143.7 |
SAND (QUARTZ) |
|
LIGHT GRAY |
UNCONSOLIDATED |
|
SOME COARSE PHOSPHATE. |
| 143.7 |
212 |
SAND (QUARTZ) |
|
LIGHT GRAY |
UNCONSOLIDATED |
|
SCATTERED THIN CLAY BEDS. COARSE BED (MIXED VC COARSE TO FINE) AT 152-153' THEN BACK TO VF-F. ANOTHER ZONE OF VC-C SAND AT 160-161.25'. BECOMES SLIGHTLY CALCAREOUS AROUND 173+/- (NO VISIBLE CARBONATE) INTERMITTENT. SEEMS TO HAVE INCREASING % OF COARSE SAND BETWEEN 198-204' |
| 212 |
234 |
SAND (QUARTZ) |
|
WHITE |
POOR |
|
WHITE SLIGHTLY CALC. TO CALC. CEMENT.; FINER GRAINED 223-224.5'. SILTY CLAYEY ZONE 224.5-225+/- THEN BACK TO COARSER SAND. VARIABLE CALC. SILTY ZONE 231-231.75', AND 233-233.75'. THIN HARD CALCAREOUS CEMENTED SANDSTONE AT 233.75'-234'. |
| 234 |
251 |
SAND (QUARTZ) |
|
LIGHT GRAY |
UNCONSOLIDATED |
|
VARIABLE COARSENESS. CALC. MATRIX. THIN CLAYEY,SILTY ZONE WITH CALCAREOUS CEMENT AT 250'. |
| 251 |
260 |
SILT |
|
LIGHT GREENISH GRAY |
POOR |
|
AT 252' NANNOS OF NO YOUNGER THAN MID-MIDDLE MIOCENE AGE. THIN SILT BEDS-VERY SANDY (VF) SAND BECOMES MORE COARSE WITH DEPTH. POOR RECOVERY (3/10). |
| 260 |
270 |
SANDSTONE |
|
LIGHT GRAY |
|
|
VERY CALC. SANDSTONE OR VERY SANDY LS. AT APPROX. 260', SAND W\ BEDS OF VERY FINE CALC. MUD W\ MINOR SAND, LITTLE OR NO PHOS. 5/10 RECOVERY. |
| 270 |
273.5 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
POOR-UNCONSOLIDATED. SOME FOSSIL FRAGS AND CALC. MATRIX. INTERBEDDED W\ VERY SANDY LS BELOW 271- 273.5'. MOLLUSK MOLDS IN LS.,FEW FOSSIL FRAGS REMAIN, OSTREA, BALANUS (TAMIOSOMA). |
| 273.5 |
289 |
LIMESTONE |
|
LIGHT GRAY |
MODERATE |
|
POOR-GOOD INDURATION. SOFTER ZONES LOST. SOME ZONES ARE COQUINA, NOW JUST MOLDS. SAND IS VC-C. SOME BEDS ARE CALC. CEMENTED SANDSTONE. VC-C. POOR RECOVERY 273.5-322'. |
| 289 |
310 |
SAND (QUARTZ) |
|
LIGHT GRAY |
MODERATE |
|
BY 289' BECOMES SAND, POOR-MOD. INDURATION, THE POORER CONSOLIDATED BEDS HAVE WASHED OUT DURING DRILLING.MOLDS OF FOSSILS PRESERVED BY RIMS OF CALCITE. |
| 310 |
385 |
SAND (QUARTZ) |
|
LIGHT GRAY |
POOR |
|
BAG SAMPLE-310-320' M-C SAND W\CALC MATRIX, TRACE OF PHOS., BECOMES F-C, MODE MEDIUM AT 325' BAG, F-C,MEDIUM AVG. W\ FEW COARSE GRAINS BY 340', M-C,C 370-375', M-VC, COARSE AVG. 375-385'. |
| 385 |
421 |
LIMESTONE |
|
LIGHT GRAY |
POOR |
|
CUTTINGS 385-421'; APPEARS TO BE PEACE RIVER TOP. PHOSPHATE INCREASES OVER <385' LEVELS. PROBABLY IS A LS. VARIABLE PERCENTAGES OF SAND, SAND IS GENERALLY FINE, CHUNKS OF HARDER LS/DOLOMITE PRESENT. PHOSPHATE IS V.F., BLACK. |
| 421 |
424.5 |
SAND (QUARTZ) |
|
MODERATE GRAY |
POOR |
|
FOSSIL FRAGS IN LOWER 1.5'. |
| 424.5 |
430 |
LIMESTONE |
|
WHITE |
POOR |
|
POOR-MOD. INDURATION. SILTY., ABUNDANT BRYOZOANS FORAMS, FEW OYSTER FRAGS., VERY SILTY (DOLO?) ZONE 429-430. ABUNDANT SHELL FRAGMENTS 429 AND 430-30.5'. |
| 430 |
435 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
NEARLY ALL SEDS ARE BIOTURBATED. |
| 435 |
437 |
LIMESTONE |
|
LIGHT GREENISH GRAY |
MODERATE |
|
|
| 437 |
439 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
GRADES INTO VERY SANDY LS, SOME DOLOMITE?, GRADES TO WHITE LS W/DEPTH. GRADES BACK INTO VERY CALCAREOUS SAND. |
| 439 |
442.5 |
LIMESTONE |
|
WHITE |
MODERATE |
|
THEN TO WHITE LIMESTONE. PHOS VARIES FROM 3-10% LS HARDER 442-442.5'. |
| 442.5 |
461 |
LIMESTONE |
|
MODERATE GRAY |
GOOD |
|
BLACK, IRREGULAR, WEATHERED SURFACE AT 442.5'. LS. SOFTER BELOW 443', VERY SANDY LS TO VERY CALC. SANDSTONE. PHOS. 4-20%, AVG 10%. MED GRAY TO LIGHT GRAY GREEN SCATTERED LITHOCLASTS AROUND 455'. 457-58' VERY SHELLY, OSTREA. PHOS. IS VF, BLACK. |
| 461 |
462 |
SAND (QUARTZ) |
|
GREENISH GRAY |
POOR |
|
SAND WITH CLAY. DOLOMITIC?. DISTINCT CHANGE FROM ABOVE. |
| 462 |
467 |
LIMESTONE |
|
LIGHT GRAY |
GOOD |
|
FEW MOLDS., THIN CLAY LAMINAE AND STRINGERS, CLAY CONTENT INCREASES W\DEPTH. |
| 467 |
467.5 |
DOLOMITE |
|
GREENISH GRAY |
GOOD |
|
HARD, BORED CLAST OF DOLO. THIN HARD CLAYEY DOLOSILT OR DOLOSILTY CLAY W\ VF TO SILT SIZED QTZ SAND. |
| 467.5 |
468 |
SILT |
|
GREENISH GRAY |
MODERATE |
|
|
| 468 |
476.7 |
CLAY |
|
GREENISH GRAY |
POOR |
|
SILTY, VF SAND?, DOLOSILT, PHOS?, VARIABLE DOLOMITE CONTENT AND SILT. BECOMES SANDIER AND MORE PHOS. 472.3'. 473.5' SHELL FRAGS (LEACHED), MORE CALCAREOUS. 474-SAND DECREASES, DIATOM MOLDS PRESENT. BIOTURBATED -BURROWS NOTED THROUGHOUT, OFTEN FILLED WITH SANDIER MORE PHOSPHATIC SEDIMENT. |
| 476.7 |
481 |
SAND (QUARTZ) |
|
LIGHT GREENISH GRAY |
POOR |
|
POOR-MOD. INDURATION. CALC MUD TO 25%, SILTY, PHOS. TO 15%; VARIABLE CARB. MUD CONTENT. SANDIER NEAR 476.7, MORE CARBONATE 478'. |
| 481 |
481.8 |
LIMESTONE |
|
VERY LIGHT GRAY |
GOOD |
|
BECOMES A SANDY,SILTY, PHOS.(15%), LS. LARGE PECTEN FRAGS. NEAR 481.8'. MIXTURE OF SAND W\CARB. MATRIX, PHOS., CLAYS IN THIN LAMINAE AND SANDY PHOS. LS- ALL WITH FOSSIL FRAGS AND MOLDS AND CASTS. |
| 481.8 |
497 |
LIMESTONE |
|
LIGHT GRAY |
MODERATE |
|
FEW FOSSIL FRAGS REMAIN. BURROWS FILLED W\ SAND, PHOS., AND DOLO.; VARIES TO SAND, MED GRAY, VF, F-SILT, POOR IND., LS. DOLO MATRIX, PHOS 25-30%, DOLOMITE CLAY BECOMES MORE CALCAREOUS BELOW 486'. 492-494' IS VERY PHOS. >25% (TO 40%). HIGHLY BIOTURBATED. 497-DOLOMITIC LS TO DOLOMITE AS ABOVE. |
| 497 |
500 |
LIMESTONE |
|
|
|
|
NOTE: PHOS. IN THIS SECTION 476.7-508' OCCURS AS VF. TO MED SAND SIZED ROUNDED GRAINS, W\ SOME IRREGULARLY SHAPED COARSE GRAINS TO FINE GRAVEL SIZE. COARSER FRACTION APPEARS TO BE PRIMARILY A PHOS. REPLACEMENT OF FOSSIL DEBRIS. COLORS RANGE FROM SHINY BLACK TO BROWN AND AMBER, W\ BLACK MOST COMMON. PHOS. FISH BONES, GASTROPODS, BRYOZOANS. GRADES FROM DOLO. TO LS. 499-500'. |
| 500 |
512.5 |
LIMESTONE |
|
WHITE |
POOR |
|
MOLLUSKS, BRYOZOANS, MINOR CLAY CONTENT, MORE INDURATED (MOD.) 502 AND BELOW. SAND AND PHOS. DECREASE BUT REMAIN HIGHLY VARIABLE. APPEARS TO BE DOLOMITIC BELOW 504 TO 506'. MUCH LESS SAND AND PHOS. 509', GRADES INTO DOLOMITE. |
| 512.5 |
514 |
DOLOMITE |
|
GREENISH GRAY |
MODERATE |
|
BURROWED NEAR 514', BURROWS FILLED WITH VF QTZ SAND AND PHOSPHATE. |
| 514 |
526 |
LIMESTONE |
|
LIGHT GRAY |
MODERATE |
|
ZONE OF DOLO. 2-3" THICK 515.5'; SAND AND PHOS. CONTENT INCREASE BELOW 516' VERY PHOS. (20%), SANDY (30%), 522' W\ SCATTERED DOLO. |
| 526 |
534.5 |
SAND (QUARTZ) |
|
GREENISH GRAY |
POOR |
|
BURROWS. VARIABLE TO PHOSPHATIC, SANDY DOLOMITE. AT 528.5-9'/ SHARP CONTACT W\ UNDERLYING UNITS. SCATTERED OYSTER SHELL FRAGMENTS. |
| 534.5 |
540.5 |
LIMESTONE |
|
LIGHT GRAY |
POOR |
|
POOR-MOD. INDURATION. SILTY, SOME INTERBEDDED ZONES AS 526'. SAND AND PHOS INCREASE AROUND 535.5', -536', BURROWS FILLED WITH OVERLYING SEDIMENT TYPE. GRADES INTO UNDERLYING UNIT. |
| 540.5 |
544 |
SILT |
|
MODERATE GRAY |
POOR |
|
POOR-MOD IND., MINOR VF SAND AND PHOS., SCATTERED BURROWS. FOSSIL FRAGS APPEAR 543', MORE CALCITIC TOWARDS 544' GRADES INTO UNDERLYING UNIT. |
| 544 |
546.5 |
LIMESTONE |
|
WHITE |
MODERATE |
|
BECOMES DOLOMITIC W\DEPTH. MORE PHOS. W\ DEPTH, (IRREGULAR FRAGS.) GRADES INTO UNDERLYING UNIT. INCREASING SILT, VF SAND AND CLAY TO 546.5'. |
| 546.5 |
552 |
CLAY |
|
GREENISH GRAY |
MODERATE |
|
BURROWS FILLED WITH SILTY CLAY W\ PHOS.,FOSSIL FRAGS, MICA. ZONE OF GRADATIONAL CHANGE FROM CLAY TO CARBONATE. VERY ABUNDANT PHOS. TO 35%, MUCH OF IT IS REPLACED FOSSIL DEBRIS. OSTREA. |
| 552 |
553 |
DOLOMITE |
|
WHITE |
MODERATE |
|
DOLOMITE AND LIMESTONE. BRYOZOANS HAVE SOME PHOS. NUCLEATING IN STRUCTURE, MOLLUSK MOLDS AND FRAGS., DOLO. IS MORE COMMON IN THE BURROW FILL IN THIS INTERVAL. |
| 553 |
561.8 |
LIMESTONE |
|
LIGHT GREENISH GRAY |
MODERATE |
|
ABUNDANT VF FOSSIL FRAGS., NUMEROUS BURROWS, WHICH STOP AT 557'., VF SAND INCREASES W\ DEPTH. DRILLER REPORTS FLOW BEGAN AT 550-554'. BURROW FILLED WITH MORE SANDY, PHOS. LS., (SAND-20%, PHOS.-30%) FOSSIL FRAGS. MORE ABUNDANT IN BURROWS. |
| 561.8 |
566 |
LIMESTONE |
|
LIGHT GREENISH GRAY |
MODERATE |
|
|
| 566 |
568 |
DOLOMITE |
|
LIGHT GREENISH GRAY |
POOR |
|
VERY SILTY, MANY BRYOZOANS, FOSSIL FRAGS., CLAYEY, MORE CALCAREOUS W\ DEPTH, GRADATIONAL. |
| 568 |
573 |
LIMESTONE |
|
LIGHT GREENISH GRAY |
POOR |
|
SAND IS VF., FOSSIL FRAGS ARE VF., MORE INDURATED WITH DEPTH, ZONES OF DOLOMITE, GRADATIONAL CONTACT WITH UNDERLYING UNIT. |
| 573 |
583.5 |
LIMESTONE |
|
WHITE |
POOR |
|
FRAGMENTAL LS., ABUNDANT FOSSIL FRAGMENTS, POOR- MOD. INDURATION., BRYOZOANS, MOLLUSKS, MOST PHOS. IS REPLACEMENT OF FOSSIL MATERIAL. 580-82' INCREASE IN SILT (DOLO?). THIN ZONES OF HIGHER CLAY CONTENT 1-3" THICK. |
| 583.5 |
596 |
LIMESTONE |
|
WHITE |
MODERATE |
|
SILTY, SOME FOSSIL FRAGS; REXTALLIZED TO DOLO? IN MATRIX, CLAYEY AT BASE GRADING INTO UNDERLYING UNIT WITH INCREASE IN COARSE PHOS. |
| 596 |
597.5 |
CLAY |
|
MODERATE GRAY |
POOR |
|
VERY SILTY, PHOS. INTRACLASTS. |
| 597.5 |
605 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
GOOD-MOD. INDURATION, SILTY, SAND (VF), TURRITELLIDS. |
| 605 |
613 |
LIMESTONE |
|
WHITE |
GOOD |
|
SORITES NOTED, REXTALLIZED FOSSIL FRAGS., NICE BURROW STRUCTURE AT 607', PHOS INCREASES TO 7-10% AROUND 609.5', INDURATION DECREASES TO MOD. BELOW 609-612', 612' BACK TO GOOD IND., BARNACLES. |
| 613 |
618 |
LIMESTONE |
|
LIGHT GRAY |
GOOD |
|
|
| 618 |
621 |
DOLOMITE |
|
LIGHT GRAY |
GOOD |
|
MOTTLED AT TOP OF INTERVAL. ECHINOID PLATE, CRAB CLAW, GRADES INTO UNDERLYING UNIT. |
| 621 |
626.5 |
LIMESTONE |
|
LIGHT GRAY |
MODERATE |
|
TURRITELLIDS COMMON, GRADES INTO DOLOMITE. MODERATE TO GOOD INDURATION. |
| 626.5 |
629 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
MOLLUSK MOLDS ARE ABUNDANT. |
| 629 |
632 |
NO SAMPLE |
|
|
|
|
DRILLER REPORTS SOFT ROCK OR CLAY. |
| 632 |
632.5 |
SAND (QUARTZ) |
|
MODERATE GRAY |
MODERATE |
|
SAME AS 626..5'. POOR RECOVERY-ROCK CHIPS FROM WASHING HOLE, PROBABLY SOFT SAND. AS 632-632.5'. |
| 632.5 |
646.7 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
SAND AND PHOS. DECREASE AS MOLLUSK MOLDS INCREASE. |
| 646.7 |
647.2 |
SAND (QUARTZ) |
|
|
|
|
AS 642'. |
| 647.2 |
652 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
BIOTURBATION VERY EVIDENT, VARIABLY FOSSILIFEROUS. |
| 652 |
660 |
LIMESTONE |
|
WHITE |
MODERATE |
|
RECRYSTALLIZED, MOD-GOOD INDURATION, MOLLUSK MOLDS, POOR RECOVERY. |
| 660 |
661 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
FEW MOLDS. |
| 661 |
680 |
SAND (QUARTZ) |
|
MODERATE GRAY |
POOR |
|
FEW MOLDS, POOR-GOOD INDURATION, THIN ZONES OF VERY SANDY DOLOMITE, VERY BIOTURBATED. HARDER NEAR BASE, NO RECOVERY 674-77'. BORED, HARD DOLOMITE CLASTS PRESENT AT 661.5'. DRILLER REPORTS FLOW AT 678' = 100GPM. |
| 680 |
684.5 |
DOLOMITE |
|
MODERATE GRAY |
GOOD |
|
MOLLUSK MOLDS. SAND CONTENT VARIABLE. |
| 684.5 |
689 |
SAND (QUARTZ) |
|
|
|
|
AS 661'; GRADES INTO CLAYEY SAND. |
| 689 |
692 |
NO SAMPLE |
|
|
|
|
DRILLER SAYS SANDY CLAY, PROBABLY AS 684.5'. |
| 692 |
698 |
SAND (QUARTZ) |
|
MODERATE GRAY |
MODERATE |
|
MOD-POOR INDURATION. FEW FOSSIL MOLDS. BURROWS, INTRACLASTS. MAY VARY TO VERY SANDY SLIGHTLY CLAYEY DOLOMITE. LARGE (2") HARD, BORED DOLOMITE INTRACLAST AT 694'. |
| 698 |
713 |
SAND (QUARTZ) |
|
MODERATE GRAY |
MODERATE |
|
MOD-POOR INDURATION., DOLOMITE TO 20%; VERY FEW FOSSIL MOLDS. BIOTURBATED. BECOMES MORE CLAYEY 713-717'. |
| 713 |
736 |
SAND (QUARTZ) |
|
GREENISH GRAY |
POOR |
|
POOR-MOD. INDURATION; CLAY TO 50%; PHOS. DECREASES WITH INCREASING CLAY CONTENT; ZONES OF SILTY, SANDY CLAY. MORE INDURATED 722-25'; ZONE W\ FEW FOSSIL FRAGS 727-28'; ABUNDANT INTRACLASTS 734-36'? (POOR RECOVERY) SOME WITH BORINGS. |
| 736 |
737 |
DOLOMITE |
|
GREENISH GRAY |
GOOD |
|
|
| 737 |
740 |
SAND (QUARTZ) |
|
|
|
|
AS 713'; GRADING INTO DARK GRAY TO BLACK STICKY CLAY. HAS THIN SAND STRINGERS AND BURROW FILL. |
