paleoenv_sequences
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| - | //Examining patterns and trends in biostratigraphic data sets enables the identification of sequence surfaces and systems tracts in a typical 3rd-order sequence cycle.// | + | //Examining patterns and trends in biostratigraphic data sets enables the identification of sequence surfaces and systems tracts in a typical 3rd-order sequence cycle. This recognition relies on the ability to determine paleoenvironments and their changes (trends) in response to sea-level rise and fall.// |
| A simple, but common measurement to determine relative paleo water depth is the ratio of planktonic organisms (surface or near-surface dwellers) to benthonic organisms (substrate dwellers) – specifically Foraminifera. A typical whole foraminiferal assemblage will comprise both types of foram but in varying proportions depending mainly on the prevailing water depth: | A simple, but common measurement to determine relative paleo water depth is the ratio of planktonic organisms (surface or near-surface dwellers) to benthonic organisms (substrate dwellers) – specifically Foraminifera. A typical whole foraminiferal assemblage will comprise both types of foram but in varying proportions depending mainly on the prevailing water depth: | ||
paleoenv_sequences.1679310394.txt.gz · Last modified: 20/03/2023 11:06 by mike_gss