strati Flashcards
-STUDY OF TEMPORAL AND SPATIAL RELATIONSHIP BETWEEN BODIES OF SEDIMENTARY ROCKS.
STRATIGRAPHY
-IS A BRANCH OF GEOLOGY CONCERNED WITH THE STUDY OF ROCK LAYERS (STRATA) AND
LAYERING (STRATIFICATION). (WIKIPEDIA)
STRATIGRAPHY
A SCIENTIFIC DISCIPLINE CONCERNED WITH THE DESCRIPTION OF ROCK SUCCESSIONS AND
THEIR INTERPRETATION IN TERMS OF A GENERAL TIME SCALE.
STRATIGRAPHY
IT IS WHEN ROCKS
AND EVENTS ARE PUT IN CORRECT
ORDER OF SEQUENCE RELATIVE TO
ONE ANOTHER.
RELATIVE DATING-
AGE OF ROCK
UNITS IS DETERMINED PRECISELY IN
YEARS USING THE RATE OF DECAY OF
NATURALLY OCCURRING RADIOACTIVE
ELEMENTS
ABSOLUTE DATING-
PRINCIPLES OF
STRATIGRAPHY
1.LAW OF SUPER POSITION
2.LAW OF ORIGINAL HORIZONTALITY
3.LATERAL CONTINUITY
4.CROSS-CUTTING RELATIONSHIP
5.INCLUSION
6.UNCONFORMITY
7.LAW OF FAUNAL SUCCESSION
USUALLY A PRODUCT OF INTERPRETATION
OF OTHER STRATIGRAPHIC ANALYSIS OF
THE BASIN
CHRONOSTRATIGRAPHY
THE ULTIMATE AIM OF
CHRONOSTRATIGRAPHY IS TO
ARRANGE
THE SEQUENCE OF DEPOSITION AND
THE TIME OF DEPOSITION OF ALL
ROCKS
A WELL ESTABLISHED TOOL BASED
ON THE OBSERVATION OF
GEOLOGISTS OF FOSSIL
ASSEMBLAGES FOUND IN SIMILAR
ROCKS.
BIOSTRATIGRAPHY
PROBLEMS ENCOUNTERED IN PETROLEUM INDUSTRY WITH
BIOSTRATIGRAPHY UTILIZING REGULAR FOSSILS:
- SIZE.
- CAVINGS.
- PETROLEUM INDUSTRY USES THE FFG:
1.MICROFOSSILS
2. NANOFOSSILS
3. PALYNOMORPHS
-RELIES ON THE CORRELATION OF ROCKS
OF THE SAME CHARACTERISTICS.
LITHOSTRATIGRAPHY
-MOST MALIGNED STRATIGRAPHIC METHOD
AND ALSO THE OLDEST OF THEM ALL.
LITHOSTRATIGRAPHY
-THE STUDY OF SEISMIC DATA FOR THE PURPOSE OF
EXTRACTING STRATIGRAPHIC INFORMATION IS
CALLED
SEISMIC STRATIGRAPHY
DIFFERENT MARGINS IDENTIFIED BY TECTONIC STRATIGRAPHY.
- RIFT BASINS
- PASSIVE MARGINS
- FORELAND BASINS
- WRENCH SYSTEMS