* Notes are hidden, but may be seen by pressing **P** on your keyboard.
* Press **C** to clone a show.
* Press **H** for other keyboard shortcuts.
class: center, middle
### Database for geological data.
[Macrostrat](https://macrostrat.org) is a platform for the aggregation and distribution of geological data relevant to the spatial and temporal distribution of sedimentary, igneous, and metamorphic rocks as well as data extracted from them. It aims to become a community resource for the addition, editing, and distribution of new stratigraphic, lithological, environmental, and economic data. Interactive applications built upon Macrostrat are designed for educational and research purposes.
A comprehensive relational database currently containing 1,474 regional rock columns, 33,903 stratigraphic units, 2,050,565 geologic map polygons, and more than 90,000 attributes (radioisotopic ages, lithologies, economic uses, etc.).
Macrostrat was originally built to test hypotheses for the correlation between the sedimentary rock and fossil records. It is spatially explicit and chronostratigraphically focused and serves as a scaffolding for organizing and analyzing geological data of all types.
## Source of Data
Data are aggregated from multiple published and online sources, including those from the Geological Survey of Canada, the United States Geological Survey, and the AAPG.
## Data are CC BY 4.0