def_strat_names {rmacrostrat} | R Documentation |
Define stratigraphic names
Description
A function to retrieve the definitions for one or more stratigraphic names in the Macrostrat database. By default, all stratigraphic name definitions are returned.
Usage
def_strat_names(
strat_name = NULL,
interval_name = NULL,
rank = NULL,
concept_id = NULL,
ref_id = NULL,
strat_name_id = NULL,
rule = NULL
)
Arguments
strat_name |
|
interval_name |
|
rank |
|
concept_id |
|
ref_id |
|
strat_name_id |
|
rule |
|
Value
A data.frame
containing the following columns:
-
strat_name
: The short-form stratigraphic name (e.g. "Hell Creek"). -
strat_name_long
: The long-form stratigraphic name, including the lithostratigraphic rank of the stratigraphic name (e.g., "Hell Creek Formation"). -
rank
: The lithostratigraphic rank of the stratigraphic name (e.g., "Formation"), in short form (e.g., "Fm"). -
strat_name_id
: The unique identification number of the stratigraphic name. -
concept_id
: The unique identification number of the associated stratigraphic name concept, which groups variantstrat_names
for the same geologic entity (seedef_strat_name_concepts()
). -
bed
: The stratigraphic name of the bed associated with the specified stratigraphic name. -
bed_id
: The unique identification number (strat_name_id) of the bed associated with the specified stratigraphic name associated with the specified stratigraphic name. -
mbr
: The stratigraphic name of the member associated with the specified stratigraphic name. -
mbr_id
: The unique identification number (strat_name_id) of the member associated with the specified stratigraphic name. -
fm
: The stratigraphic name of the formation associated with the specified stratigraphic name. -
fm_id
: The unique identification number (strat_name_id) of the formation associated with the specified stratigraphic name. -
subgp
: The stratigraphic name of the subgroup associated with the specified stratigraphic name. -
subgp_id
: The unique identification number (strat_name_id) of the subgroup associated with the specified stratigraphic name. -
gp
: The stratigraphic name of the group associated with the specified stratigraphic name. -
gp_id
: The unique identification number (strat_name_id) of the group associated with the specified stratigraphic name. -
sgp
: The stratigraphic name of the supergroup associated with the specified stratigraphic name. -
sgp_id
: The unique identification number (strat_name_id) of the supergroup associated with the specified stratigraphic name. -
b_age
: The bottom age (maximum age) associated with the stratigraphic name, in millions of years before present. -
t_age
: The top age (minimum age) associated with the stratigraphic name, in millions of years before present. -
b_period
: The name of the oldest geologic time period associated with the stratigraphic name (seedef_intervals()
). -
t_period
:The name of the youngest geologic time period associated with the stratigraphic name (seedef_intervals()
). -
c_interval
: The name of the central interval associated with the stratigraphic name (seedef_intervals()
). -
t_units
: The total number of Macrostrat units that are associated with the stratigraphic name. -
ref_id
: The unique identification number of the reference from which the stratigraphic name was sourced (seedef_references()
).
Developer(s)
Christopher D. Dean
Reviewer(s)
Bethany Allen
See Also
Stratigraphic names:
def_strat_name_concepts()
Examples
# Return a sample of stratigraphic names
ex1 <- def_strat_names()
# Return all stratigraphic names associated with a particular stratigraphic
# name
ex2 <- def_strat_names(strat_name = "Hell Creek")
# Return all stratigraphic names that intersect with a chosen time interval
ex3 <- def_strat_names(interval_name = "Campanian")