Providing and implementing tools and technology for understanding the dynamic Earth
DLD for iPhone®, iPad®, and iPod Touch®

Experience the Devonian Lithological Database on the go! In the field, office, classroom, or even conferences! DLD for iOS® is a simplified interface to the database. Learn more about the Devonian Lithological Database.


Overview Map

Using Apple Maps, Google Maps, or OpenStreetMaps (depending on iOS® version and connectivity), get an overview of the distribution of Devonian rock contained in the database.


Close-Up Overview Map

When close-in, individual localities within the database will appear as pins. Each pin represents one or more Devonian rock unit.


Tap on Pin

Tapping on a pin gives the most basic record information for the locality.


Tap the Arrow

Tapping the arrow on the pin's quick data opens the detailed listing for the locality, including coordinates and what rock units are present.


Tap the Rock Unit

When you tap on a rock unit in the locality view, you are provided with the detailed information for that rock unit, including name, age, rock types present, thickness, and original source.


Time-Scale Control

Use the time-scale control to limit what data are shown. The control shows only the data that overlap the age shown in the control.