unit defined by its geological features
means the totality of sedimentary deposits, that bear the characters of certain environment: e.g. shallow-water facies, reef facies, lagoon facies etc.
All of the characteristics imparted by an environment to its sediment at approximately the same time; can be represented by biofacies (organismal remains), ichnofacies (traces left by organismal behavior), and lithofacies (composition and proportions of sediments).
a term used to refer to a distinguished part or parts of a single geologic entity
The characteristics of a rock mass that reflect its depositional environment. These characteristics enable the rock mass to be distinguished from rocks deposited in adjacent environments.
all of the characteristics of a particular rock unit. The characteristics of the rock unit come from the depositional environment, which puts its own distinctive imprint on the sediment, making a particular facies. Thus, a facies is a distinct kind of rock for that area or environment.
Appearance, character. Characteristics of a bed which reflect the conditions of its origin. Such characteristics may change relative to the same bed. or other beds which are deposited at the same time, reflecting changes in the depositional environments.
Metamorphic rocks characterized by particular mineral associations indicative of a range of temperature-pressure conditions.
Term denoting sedimentary deposit of a particular character or genesis such as deltaic facies, playa lake facies.
a body of rock with specified characteristics
a unit of sedimentary rock deposited in a particular sedimentary environment
rocks with a group of characteristics that imply a certain origin or history.
Sum total of features that reflect the specific environmental conditions under which a given sediment was formed or deposited. The features may be lithologic, sedimentological, or faunal.
an assemblage or association of mineral, rock, or fossil features reflecting the environment and conditions of origin of the rock.
the aspect, appearance and characteristics of a rock, usually reflecting the conditions of its origin.
A geological term describing the composition and characteristics of a rock formation.
The aspect, appearance and characteristics of a rock unit (e.g., member or formation), usually reflecting the conditions of deposition; sedimentary units commonly change laterally from one facies to another, such as from sandstone to shale, reflecting changes in depositional environment.
The assemblage of rock. Refers to the appearance, characteristics and peculiarities that distinguish a rock unit from its adjacent units.
The overall characteristics of a rock unit that reflect its origin and differentiate the unit from others around it. Mineralogy and sedimentary source, fossil content, sedimentary structures and texture distinguish one facies from another.
In geology, the composition and characteristics of a rock formation.
Latin "mien, figure, face" The sum total of sediment's petrographic, palaeontological characteristics, which determined by the physical, geographical, geological terms of razing and accumulating zone.
group of petrographic, lithologic, and paleontologic characters which define a geologic unit.
lateral or vertical changes in the character of a sediment or rock unit. Changes in mineralogy, color, texture, fossil content, etc.
the rock record of any sedimentary environment, including both physical and organic characters.
The sum total of features such as sedimentary rock type, mineral content, sedimentary structure, bedding characteristics, fossil content, etc. Which characterise a sediment as having been deposited in a given environment.
The appearance or aspect of any rock; the sum total of its characteristics. (stratigraphic facies — The sum of the rock and fossil features of a sedimentary rock).
