certain
Identity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.
FGDC-STD-013-2006
GLID_1
cleavage
A locally planar fabric in an unmetamorphosed or weakly metamorphosed, fine-grained rock defined by either the tendency of a rock to split in a particular direction, a preferred orientation of crystal planes in mineral grains, or a preferred orientation
DS1
GLID_10
contact
A plane or irregular surface between two types or ages of rock; examples are faults, intrusive borders, bedding planes separating distinct strata, and unconformities.
GLID_11
fault
A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other.
GLID_12
fold axis
A line which, when moved parallel to itself, traces out a folded surface. It applies only in the case of cylindrical folds.
GLID_13
joint
A planar fracture, crack, or parting in a rock, without shear displacement; the surface is usually decorated with a plumose structure. Often occurs with parallel joints to form part of a joint set.
GLID_15
DMUHeader1
Formation header, bolded text, no indent. This format is used for Formations, members, sub-units, Quaternary deposits, and basement complex.
DS2
GLID_16
lineation
A general, nongeneric term for a locally linear structure or fabric  in a rock, e.g. flow lines, scratches, striae, slickensides or slickenfibers on a single surface; linear arrangements of components in sediments; or axes in folds. Lineation in metamorp
GLID_49
High
High level of confidence that GeoMaterial term accurately and appropriately describes the map unit.
GLID_62
bedding
The arrangement of sedimentary rocks in beds or layers of varying thickness and character; the general physical structural character or pattern of the beds and their contacts within a rock mass, such as cross-bedding and graded bedding; a collective term
GLID_68
foliation
A general term for a planar arrangement of textural or structural features in any type of rock, esp. the locally planar fabric in a rock defined by a fissility, a preferred orientation of crystal planes in mineral grains, a preferred orientation of inequ
GLID_71
abandoned mine
Mine: An underground excavation for the extraction of mineral deposits, in contrast to surficial excavations such as quarries. The term is also applied to various types of open-pit workings.
GLID_72
flow banding
Intersection of igneous or metamorphic layering with an outcrop surface. It may be produced by such processes as flow of geterogeneous material *e.g. flow layering of rhyolites) or successive deposition of layers of different materials (cf: phase layerin
GLID_73
mine
An underground excavation for the extraction of mineral deposits, in contrast to surficial excavations such as quarries. The term is also applied to various types of open-pit workings.
GLID_74
minor fold hinge
Hinge: The locus of maximum curvature or bending in a folded surface, usually a line.
GLID_75