Strength in numbers.

With 35,186 rock units from 1,535 geographic regions, Macrostrat is off to a good start.

Here Now!

North America

23,814 units, 6,993 packages, 949 columns

COSUNA and the GSC led the way, Macrostrat has followed.

In the 1970s, the Geological Survey of Canada published a series of four correlation charts for the entire country. All rocks known at the time were included in a single, unifying body of knowledge. The American Association of Petroleum Geologists was impressed and launched COSUNA. These two ground-breaking initiatives serve as the starting point for Macrostrat North America. Building and improving on this superb starting point and creating COSUNA II is what this is all about.

Here Now!

New Zealand

2,168 units, 828 packages, 329 columns

Bringing it all together, Kiwi style, means high-density knowledge.

Few other regions in the world have a greater density of highly-organized geoinformatics than New Zealand, all thanks to The Institute of Geological and Nuclear Sciences (GNS). Making sense of all that information might be tough, but P.R. King and colleagues brilliantly integrated two decades of stratigraphic work and analysis in their "Cretaceous to Recent sedimentary patterns in New Zealand." This unparalleled compilation is the rich starting point for Macrostrat New Zealand.

Here Now!

Deep Sea

7,124 units, 387 packages, 132 columns

Offshore drilling was revolutionary, Macrostrat is evolutionary.

Few advances in geoscience have had a bigger impact than the three major offshore drilling initiatives (IODP, DSDP, ODP). Originally launched to find evidence for sea floor spreading, offshore drilling is now one of the major research tools for paleoclimatology, tectonics, and geophysics. Macrostrat Deep Sea aims to bring this body of knowledge together into an interactive, quantiative tool. Emphasis is now on sediments, but like all missions, that too will evolve.

Here Now!


798 units, 243 packages, 64 columns

Active margins, meet coral reefs, coral reefs, meet Macrostrat.

Correlation charts were published for the Caribbean region in the late 1980s and early 90s as part of the Geological Survey of America's Decade of North America Geology. These charts help expand Macrostrat's spatial coverage to include the complex geology of the circum-Caribbean Basin, where active-margin plate tectonics and impressive biodiversity collide.

Coming Soon!


0 units, 0 packages, 0 columns

On its way up, Macrostrat is going down under.

Australia has a very different tectonic history than North America and many other continents, and soon the data and tools will be available for you to determine exactly how the rock record of Australia has evolved as a result. The data are many, and we are working hard to make them available to you soon. Stay tuned and watch as the dataset grows!