A platform for geologic maps and stratigraphy
A platform for geologic maps, stratigraphy, and the other data that describe the rock record, used by thousands of geologists and dozens of applications. I have led the project since 2021, rebuilding it as the "Macrostrat v2" platform with DARPA and NSF funding.
A mobile app for exploring the world's geology
A mobile app for exploring the world's geology, built on Macrostrat and used by more than 200,000 people. I co-lead the project with Shanan Peters and own its data infrastructure.
Geologic mapping for iPad and Apple Pencil
A geologic mapping app for iPad and Apple Pencil that keeps the feel of drawing on paper while producing a clean, topologically consistent map. I created it for my own field work and maintain it as a product.
On-the-fly meshing of raster elevation tiles for the CesiumJS virtual globe
Meshes ordinary raster elevation tiles into terrain for CesiumJS globes in the browser. I created it for planetary terrain viewers.
A GPlates-compatible paleogeography service
A GPlates-compatible paleogeography service that powers Macrostrat's rotated views. I created it.
Open-source libraries for web-based geologic data visualization
React libraries for stratigraphic columns, geologic maps, and timescales, shared by the Macrostrat and Rockd interfaces. I lead their development.
A small, sophisticated data system for geochronology and geochemistry labs
A data system for geochronology and geochemistry labs, built under NSF EarthCube. I created it and maintain it.
A digital scientific library and machine-reading platform
A machine-reading platform over the scientific literature. I contribute its geological applications, feeding Macrostrat's lexicon and knowledge graph.
Structure and stratigraphy of the Zebra Series and the tectonic evolution of the Naukluft Nappe Complex, Namibia
Field mapping and stratigraphy of the Naukluft Nappe Complex, Namibia, with John Grotzinger and Theodore Present; in review at GSA Bulletin. The proving ground for Mapboard GIS.