Tags » Stratigraphy

Holocene or Anthropocene? What's the big deal?

Ever since seventeenth-century Danish scientist Nicholas Steno first came up with the idea that rock formations were stratified into horizontal layers according to the periods of time they were laid upon one another, geologists have attempted to discern the different geological time scales of the earth. 564 more words


On "Stratigraphy"

Here’s a little video in which I speak about the piece I am currently writing for the Prism Saxophone Quartet and Marilyn Nonken:

And here is… 14 more words

Taxonomies for Big History

The taxonomy for the GSSP is maintained by the International Commission on Stratigraphy (ICS). Their system links chronological periods to geological strata. Each geological layer, indicates large-scale historical planetary transformations.

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Graphic Correlation

Introduction: In biostratigraphic correlation vertical ranges of important fossil groups are utilized. In 1964, A.B. Shaw developed a method of Biostratigraphic correlation, which, in the form of Graph, visually displays the correlation between two sections having rocks of similar age and their relative rate of rock accumulation. 1,446 more words


Correlation – Paleontological Criteria

The fossils can be used as one of the reliable means/tools for knowing the relative ages of different rock strata as well as their large scale correlation. 1,214 more words


Stable Isotope Stratigraphy

Since the middle of the last century a new tool, stable isotope stratigraphy, has come into use as a means of postulating correlations, particularly chronostratigraphic correlations over large geographic areas. 1,022 more words


New Year, New...Epoch?

Happy new year, blog readers!

While the rest of us are working on making, breaking and conveniently overlooking newly made resolutions, some in the geological community are focusing on a more fundamental resolution. 578 more words