EPOCH WELL LOGGING, INC.
Core #1
1200' -1220'
DIATOMACEOUS MUDSTONE - dark yellow-brown to dusky
yellow-brown; soft to slightly firm; poor to moderate
induration; dull to sparkling luster; grainy to gritty
texture; slightly punky; clay rich; abundant diatom
frustules; frustules commonly filled with dark brown clay;
common fracture with clay rich fracture fill material;
occasional fish scales; low density; weak trace wood debris;
common tarry oil blebs on fracture surfaces; moderate to
strong petroleum odor; iridescent oil sheen when immersed in
water; strong gold to yellow-gold sample fluorescence;
instant opaque brownish yellow-orange to yellow-green cut
fluorescence; dark amber to brown visible cut; streaming gold
to yellow-orange residual cut fluorescence.
Core #2
2210'
SHALE - olive black; very firm, brittle; very good fissility;
breaks in thin subparallel layers; slightly grainy to gritty
texture; earthy to slightly sparkling luster; noncalcareous;
trace relict forams; slight petroleum odor; patchy dull
yellow-gold sample fluorescence; moderately fast, streaming
milky yellow cut fluorescence; straw visible cut; light
yellow-orange residual fluorescence.
2214'
MUDSTONE/SHALE - light olive gray; firm to hard; well
indurated; massive to weakly fissile; common off white thin
laminations; slightly arenaceous texture; dull earthy luster;
abundant scattered relict microfossils; trace diatom casts;
trace sulfides: no distinct odor; trace dull yellow sample
fluorescence; slightly streaming milky yellow-white cut
fluorescence; pale straw visible cut.
2217'
SHALE - live olive gray to olive gray; firm, brittle; fair
fissility; occasional microlaminations; gritty to arenaceous
texture: dull earthy luster; occasionally sparkling with
disseminated sulfides appearing to replace microfossil
relicts; abundant forams, rare fish scales; trace dull yellow
sample fluorescence; fast diffuse milky white cut
fluorescence; pale straw visible cut; light yellow-orange
residual cut fluorescence; no odor.
2220'
SHALE - light olive gray; hard; well indurated; poorly
fissile grading to mudstone; arenaceous texture; dull earthy
luster; noncalcareous; slightly fewer foram inclusions; trace
sulfides and fish scales; spotty pale yellow sample
fluorescence; very slow light yellow translucent cut
fluorescence; light yellow residual cut fluorescence; very
pale straw visible cut; lacks distinct petroleum odor.
2223'
SHALE - light olive gray; firm to hard; moderately good
fissility; abundant very thin noncalcareous white
laminations; gritty to grainy texture; earthy luster;
increased diatoms and diatom casts; slightly decreased forams
and sulfides; no visible fish scales; trace dull gold-yellow
sample fluorescence; fast moderately strong yellow-white cut
fluorescence; light yellow-orange residual fluorescence;
straw visible cut.
2226'
SHALE - light olive gray; very firm; poorly fissile; grades
to diatomaceous mudstone; common white microlaminations;
rough, silty texture; dull earthy luster overall with
occasional sparkling sulfides; scattered forams; strong trace
diatoms; trace pale yellow sample fluorescence; very slow,
weak yellow cut fluorescence; light yellow residual cut
fluorescence; no odor or visible stain.
2230'
SHALE - pale yellow-brown to light olive gray; firm, tough;
poor to fair fissility; less frequent microlaminations;
rough, hackly texture; dull luster; diatomaceous; abundant
scattered forams and few sulfides; trace dull yellow-gold
sample fluorescence; very slow streaming weak yellow cut
fluorescence.
Core #3
3850'
SHALE - olive black; very siliceous; hard to very hard;
occasionally fractured; poor fissility; abundant relict
forams; rough texture; earthy to opalescent luster;
calcareous; occasional foram casts which contain oil; weak
odor; spotty light yellow sample fluorescence; slow streaming
milky yellow cut fluorescence; light yellow residual cut
fluorescence.
3851.5'
SHALE - olive black, dusky yellow-brown; very hard; poor
fissility; numerous tan microlaminations; one calcite healed
fracture; rough texture; resinous luster; abundant relict
forams; occasional black fecal pellets/sporbo; no distinct
odor; spotty dull yellow-orange sample fluorescence; fast,
streaming, moderately strong white-yellow cut fluorescence;
light yellow residual cut fluorescence.
3854.5'
SHALE - dusky yellow-brown; very hard; very poor fissllity
grading to mudstone; very well indurated; occasional filled
apparent fractures; silty to slickenside appearance, dull
earthy to resinous luster; calcareous; abundant foram tests
and casts; occasional vugs and veins with heavy oil bleeding
out; trace sporbo; very weak odor; trace dull yellow-orange
sample fluorescence; moderately fast, diffuse to streaming
light milky yellow cut fluorescence; light yellow residual
cut fluorescence; straw visible cut.
3859'
SHALE - olive black; very hard; very poor fissility; few tan
calcareous laminations; abundant slickenside fracture
surfaces with occasional free oil; occasional preserved and
relict fora-s; weak trace phosphatic nodules; overall rock is
calcareous; smooth to silty texture; dull to shiny luster on
slickenside surfaces; weak odor; trace dull yellow-orange
sample fluorescence; fast streaming to diffuse pale yellow
cut fluorescence; light yellow residual cut fluorescence;
very pale straw visible cut.
Core #4
4809'
SHALE - dusky brown to yellow-brown; firm to hard; moderate
to well indurated; slightly sparkling luster; grainy to
abrasive texture; very calcareous; abundant forams; moderate
to good uneven fissility; very finely laminated; common
fracture surfaces exhibiting well developed clay rich
slickensides; occasional forams have been pyritized; no
visible stains; weak trace odor; very pale yellow sample
fluorescence; moderately fast, streaming to diffuse
translucent to slightly opaque green-yellow cut fluorescence;
pale yellow residual cut fluorescence; pale straw visible
cut.
4812'
SHALE - dusky brown to yellow-brown; firm to hard; moderate
to well indurated; slightly sparkling luster; grainy to
abrasive texture; very calcareous; slightly decreased
abundant of forams; moderate to good uneven fissility; very
finely laminated; common fracture surfaces exhibiting well
developed clay rich slickensides; slickensides exhibit strong
calcite mineralization; occasional forams have been
pyritized; no visible stains; weak trace odor; very pale
yellow sample fluorescence; moderately fast, streaming to
diffuse translucent to slightly opaque green-yellow cut
fluorescence; pale yellow residual cut fluorescence; very
pale straw to clear visible cut.
4815'
SHALE - dusky brown to yellow-brown; firm to hard; moderate
to well indurated; sllghtly sparkling luster; grainy to
abrasive texture; very calcareous; increase in abundance of
forams relative to sample at 4812'; moderate to good uneven
fissility; very finely laminated; common fracture surfaces
exhibiting well developed clay rich slickensides;
slickensides are highly polished and contorted; no visible
stains; weak trace odor; very pale yellow sample
fluorescence; moderately fast, streaming to diffuse
translucent to slightly opaque green-yellow cut fluorescence;
pale yellow residual cut fluorescence; clear visible cut.
4818'
SHALE - light brown to dusky brown; hard; moderate to well
indurated; very grainy texture; slightly sparkling luster;
common foram hash; laminations less well defined; minor trace
possible fish scales; becoming increasingly silty; generally
lacks discernible structural features; no visible stains;
weak trace odor; very pale yellow to yellow-orange sample
fluorescence; fast, streaming to diffuse, increasingly opaque
green-yellow cut fluorescence; weak to slightly streaming
yellow residual cut fluorescence; straw visible cut.
4821'
SHALE - light brown to dusky brown; hard; moderate to well
indurated; very grainy texture; slightly sparkling luster;
appears to be grading to foram rich siltstone; common foram
hash; trace pyritized forams and increased abundance of
forams; laminations less well defined; minor trace possible
fish scales; becoming increasingly silty; generally lacks
discernible structural features; no visible stain; weak trace
odor; pale yellow sample fluorescence; slightly slow to
moderately fast, streaming to diffuse, translucent
green-yellow cut fluorescence; pale yellow residual cut
fluorescence; clear visible cut.
4824'
LIMESTONE - moderate brown to gray-brown; very hard; clay
rich slickensides reoccurring; strong sparkling luster;
sucrosic texture; common white secondary calcite veinlets;
slightly argillaceous; dense; minor vugs from dissolution of
foram inclusions; minor trace spotty brown oil stain; weak
trace odor; moderately bright, patchy yellow sample
fluorescence; fast, streaming opaque green-yellow cut
fluorescence; pale yellow-orange residual cut fluorescence;
pale straw visible cut.
4828'
SHALE - gray-black to olive black; hard; well indurated;
extremely fine grained; trace forams; slightly sparkling
luster; finely abrasive texture; very finely laminated; minor
trace spotty brown oil stain; weak trace odor; moderately
bright, patchy yellow sample fluorescence; fast, streaming,
opaque green-yellow cut fluorescence; pale yellow-orange
residual cut fluorescence; pale straw visible cut.