def_structures {rmacrostrat} | R Documentation |
Define geological structure
Description
A function to retrieve definitions for various geological structures within the Macrostrat database.
Usage
def_structures(
structure = NULL,
structure_class = NULL,
structure_type = NULL,
structure_id = NULL
)
Arguments
structure |
|
structure_class |
|
structure_type |
|
structure_id |
|
Value
A data.frame
containing the following columns:
-
structure_id
: The unique identification number of the structure. -
name
: The name of the structure. -
structure_type
: Structure type, less inclusive than class. -
group
: Structure group, less inclusive than type. -
class
: Structure class, more inclusive than type.
Developer(s)
William Gearty
Reviewer(s)
Lewis A. Jones
See Also
Geologic features and attributes:
def_econs()
,
def_environments()
,
def_grain_sizes()
,
def_lithologies()
,
def_lithology_att()
,
def_measurements()
,
def_minerals()
Examples
# Get all structure definitions
ex1 <- def_structures()
# Get subset of structure definitions
ex2 <- def_structures(structure_id = c(1, 3))
ex3 <- def_structures(structure_class = "igneous")