f.
fizzlepoof.com
Field notes
John’s corner of the internet
Fizzlepoof
.
Maps, machines, and things
worth
figuring out.
tilted beds
angular unconformity
dike
contours
drainage
folded sandstone
and shale
cleavage?
coiled fossil
shell ribs
cross bedding
truncated laminae
quartz veins
in foliated rock
vein / wall rock
rounded clasts
matrix
ripple marks
crest
tilted beds
angular unconformity
dike
normal fault
sandstone / shale
marker bed offset; right block down
sill
dike
bedded sedimentary rock
sill follows bedding; dike crosscuts
contours
drainage
saddle
topographic sketch
paired summits; intervening col
ss
sh
ss
lithologic contacts
bedding symbols; attitudes unmeasured
contact
folded sandstone
and shale
cleavage?
angular hinges
chevron folds
thin competent beds in shale
low axial plane
recumbent fold
bedding wraps around a tight hinge
hinge
coiled fossil
shell ribs
radial ribs
ribbed shell in limestone
brachiopod? identification tentative
bioclastic limestone
disc-shaped columnals; crinoid debris?
central lumen
cross bedding
truncated laminae
graded sandstone beds
coarse bases; fining upward
coarse basal grains
channel scour
erosional base; basal pebble lag
pebble lag
quartz veins
in foliated rock
vein / wall rock
boudinaged quartz layer
competent lenses; necked connections
neck
brecciated zone
angular fragments in fine matrix
angular clasts
rounded clasts
matrix
porphyritic igneous rock
feldspar? in fine groundmass
phenocryst
vesicular basalt?
rounded voids; some elongated
vesicles
ripple marks
crest
desiccation cracks
polygonal cracks on mudstone surface
crack junction
striated bedrock surface
parallel grooves; glacial origin?
parallel grooves
osteoderms
tail club
low, broad skull
ankylosaur — reconstruction
armour pattern and colour illustrative