User defined items in data tables for polygon coverages for
bedrock geology, quaternary surficial units and residuual
deposits (see readme.txt for description of coverages):
MapUnit = 1 to 4 character abbreviation of geologic unit
name = unit is surficial or bedrock
SurfType = type of surficial unit
LithPri = primary lithology of unit
LithSec = secondary lithology of unit
LithTer = tertiary lithology of unit
Form = formal Formation name
Member = formal Member within a Formation
Group = formal Group name
Super Group = formal Supergroup name
RockClass = major rock-type classification
Age = era, age, epoch, etc.
Geochr = geochron
GeochrTech = technique for detemining geochron
GeochrRef = geochron reference
Fossil = yes/no fossils collected
FossilType = type of fossil, phylum etc.
FossilRef = fossil reference, e.g. a report
CorrelExtr = correlation of unit is extrapolated or
interpolated from other data
Origin = author interpretation of environment of origin of
unit = potential mineral resource
Color =weathered color of rock as exposed in the map area
MinPri = primary mineral in unit
MinSec = secondary mineral in unit
MinOth = other minerals found in unit
ClastPri = primary clast(s) in unit
ClastSec = secondary clast(s) in unit
Cement = compositon of cement or matrix
ThickApprx = approximate thickness of unit
ThickRange = range of thickness of unit
BedThin = there are thin beds within unit
BedMedium = there are medium beds within unit
BedThick = there are thick beds within unit
ContUp = nature of upper contact
ContLow = nature of lower contact
FolPri = primary foliation
FolSec = secondary foliation
FolTer = tertiary foliation
CMPM = contact metamorphic minerals
RMPM = prograde regional metamorphic minerals
RMRM = retrograde regional metamorphic minerals
DeformAge = interpreted geoogic age and/or orogeny of
deformation = isotopic technique used to date deformation
DeformRef = reference to absolute or relative age of deformation
Comments = additional information about unit
User defined items in data tables for line coverages of
contacts
contact
nature of geologic unit contact, may be frame, approximate, exposed, or concealed. Frame is arc along the quadrangle boundary.
User defined items in data tables for line coverages of
faults
f_type = confidence-level of fault location: approx, inferred, mapped, projected
fault_type = type of fault: dipslip, strikeslip, unkown
movement = sense of movement on fault
User defined items in data tables point coverges of
structural data
dip = angular measure of dip of planer feature
azimuth = 360 degree compass direction of planar or linear
feature = 360 degree direction of linear symbol
type = type of feature: bd = bedding, bdh = bedding
horizontal, if = inclined igneous foliation, vf = vertical
igneous foliation, nic = nonthroughgoing inclined
close-spaced joints, nim = nonthroughgoing inclined
medium-spaced joints, niw = nonthroughgoing inclined
medium-spaced joint; nvc = nonthroughgoing vertical
close-spaced joints, nvm = nonthroughgoing vertical
medium-spaced joints, nvw = nonthroughgoing vertical
widely-spaced joints, tim = throughgoing inclined
medium-spaced joints, tiw = throughgoing inclined widely
spaced joints, tvc = throughgoing vetical close-spaced
joints, tvm = throughgoing vertical medium-spaced joints,
tvw = throughgoing vertical wide-spaced joints, jmv = joint
with movement, mnf = minor fault.
symbol_ang = symbol angle calculated for proper plotting in Arc/Info
dip direction, will be 90 or 270 degrees off of
azimuth = sense of rotation, depending on direction of dip
