
METADATA - SHAPE FILES
PROCESS DESCRIPTION: Geological features were digitized in MicroStation/J, exported as DXF
and imported to ArcInfo 8.2. User-defined
attributes were added to complete the tables as described below.
ARCINFO GENERATED COLUMNS: AREA
area of polygon
PERIMETER perimeter of polygon
FNODE# Internal sequence
number of the from-node
TNODE# Internal sequence
number of the to-node
LPOLY# Internal sequence
number of the left polygon
RPOLY# Internal sequence
number of the right polygon
LENGTH Length in coverage
units
COVER1# Internal sequence number (i.e.,
the record number) of the arc in
the ARC file
COVER-ID User-assigned feature ID
USER-DEFINED ATTRIBUTES - POINT
FEATURES:
TABLE srp94g5
Purpose: contains the attributes of points
representing orientation
measurements
Columns:
planar_id A unique identification for each planar
measurement
planar_typ The type of planar feature. Examples: bedding, cleavage
modifier Description of the feature type.
Examples: overturned, irregular. strike Strike (according to the Right-Hand Rule) dip Dip
location Distance/direction from the
station if measured between stations or
away from the station.
trend Trend of
linear feature (value of 999 if no measurement available)
plunge Plunge of
linear feature (value of 999 if no measurement
available)
linear_typ The type of linear feature. Examples:
ripple crests, fold axis
comment Notes relating to measurement
station_id A unique identification of the outcrop
where the measurements were taken
disp_ang Achieves Right-Hand Rule orientation of
symbols in ArcView. Derived using the formula (270-strike)
nts_map National Topographic System designator.
Example: 94G/5
TABLE stp94g5
Purpose: contains the attributes of points
representing outcrops
Columns:
station_id A unique identification of each outcrop where
observations were made
easting UTM NAD83 easting coordinate value
of the station
northing UTM NAD83 northing coordinate value of
the station
elevation Elevation of the station in feet above Mean
Sea Level
unit
The predominant geological unit at the outcrop
geologist Observing geologist
nts_map National Topographic System designator.
Example: 94G/5
TABLE
fop94g5 Purpose: contains the attributes of points representing
fossils Columns: station_id A unique identification of each outcrop where
fossils were collected sample
Sample number of fossil curation
Curation number of fossil easting
UTM NAD83 easting coordinate value of station northing UTM
NAD83 northing coordinate value of station elevation
Elevation of the station in feet above Mean Sea Level report
Paleo Report number
year
Year fossil was collected
purpose Purpose of fossil nts_map National Topographic
System designator. Example: 94G/5
TABLE sap94g5
Purpose:
contains the attributes of points representing samples
Columns:
station_id A
unique identification of each outcrop where samples were
collected
sample
Sample
number
easting UTM NAD83
easting coordinate value of station
northing
UTM NAD83 northing coordinate value of station
curation
Curation number of sample
lithology Lithology from which
the sample was collected
purpose
Reason for collecting the sample
nts_map
National Topographic System designator. Example: 94G/5
USER-DEFINED ATTRIBUTES - LINE FEATURES:
TABLE gel94g5
Purpose: contains the attributes of geology
lines
Columns:
type
The type of feature. Examples: fault, contact
subtype Subdivision of the feature
type. Examples: normal, approximate
direction Directional information
pertaining to asymmetric features. Example: dip direction of
a fault
nts_map National Topographic System
designator. Example: 94G/5
Some formations are locally represented by lines rather than polygons,
where their thicknesses are less than the 1:50 000 map resolution.
TABLE unl94g5
Purpose: contains the attributes of
lines representing geological units
Columns:
label Hardcopy map unit labels
group Group
name
formation Unit name
member Member name
gen_descr Unit description
nts_map National Topographic System
designator. Example: 94G/5 chron_age Sequential numbering of units from youngest
to oldest for this map area
TABLE sel94g5
Purpose: contains the attributes of lines
representing measured
stratigraphic sections or type-localities
Columns:
type
The type of feature. Example: section, type-localities
sec_id A unique
identification for each section within the map area
segment
A unique identification of any segments within a composite
section
base_east UTM NAD83 easting coordinate value of the
base of section
base_north UTM NAD83 northing coordinate value of the base
of section
base_elev Elevation in feet at the base of the
section
top_east UTM NAD83 easting
coordinate value of the top of section
top_north UTM NAD83 northing coordinate
value of the top of section
top_elev Elevation in feet at
the top of the section
sec_thick Total measured thickness of
section
sec_unit The predominant
geological unit at the section
unit_age The geological age of
the measured unit
lithology The dominant
lithologies at the section
length The
length of the section
geologist The geologist who measured the
section
sec_date The year in which the section was
measured
nts_map National Topographic System
designator. Example: 94G/5
USER-DEFINED ATTRIBUTES - POLYGON
FEATURES:
TABLE una94g5
Purpose: contains the attributes of
polygons representing geological units
Columns:
label Hardcopy map unit labels
group Group
name
formation Unit name
member Member name
gen_descr Unit description
nts_map National Topographic System
designator. Example: 94G/5 chron_age Sequential numbering of units from youngest
to oldest for this map area
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