Clar & Brunton Notations
Native support for Clar notation (dip direction / dip, e.g., 120/45) and Brunton notation (strike / dip with Right-Hand Rule, e.g., 030/45). Zero 90-degree ambiguity.
Structural Geology • Schmidt Net • Offline
Mobile Stereonet and Structural Analysis: From Field Notebook to Schmidt Projection
Record foliations, faults, joints, and lineations directly on the outcrop. Plot poles instantly on an equal-area net, calculate Kamb density contours, compute Fisher mean vectors, and evaluate rock slope kinematics completely offline.
Comprehensive Structural Analysis in Your Pocket
Eliminate delayed manual transcriptions. RockGeo processes planar and linear datasets on your smartphone with mathematical rigor and instant graphical feedback.
Schmidt Equal-Area Net
Lower-hemisphere stereographic projection. Plot plane poles, great circles, fold hinges, and lineations with clean visual tagging across discontinuity sets.
Kamb Contours & Fisher Means
Generate statistical density contours via Kamb's method and compute true mean vector attitudes using Fisher spherical statistics with confidence cones.
Slope Kinematic Screening
Input cut slope face attitude and base friction angle to instantly screen for geometric vulnerability to planar sliding, wedge failure, and flexural toppling.
Integrated Digital Compass
Rest your device flat against rock faces to measure strike, dip, and direction using the phone's internal accelerometers and magnetometers.
Exports & Reports
Export structural records to CSV spreadsheets with computed strike, dip, and dip direction, plus DXF vectors and technical PDF reports with high-res stereonet graphics.
Conceptual Rigor and Sensor Boundaries
Structural geology demands strict terminology and scientific responsibility when using electronic consumer sensors.
Notice on smartphone magnetometer sensors: Internal smartphone compasses can experience local deflection near metallic vehicles, magnetic phone cases, or banded iron formations. Mobile sensors provide excellent preliminary screening on the outcrop, but critical engineering excavations and formal geological reports should always be cross-checked with a mechanical geological compass (Clar or Brunton).
Kinematic screening vs. geotechnical stability: Stereonet kinematic checks evaluate only geometric feasibility. They do not calculate safety factors and do not replace limit-equilibrium numerical analyses (LEM) that account for shear strength parameters, cohesion, and pore water pressures.
Deepen Your Practical Skills
Organize Measurements in a Stereonet
Step-by-step tutorial teaching you how to input foliation planes and lineations, interpret Kamb contours, and calculate Fisher mean vectors.
Record Your First Field Point
How to link structural plane attitudes directly to georeferenced stations and outcrop photographs on Android.
Offline Field Mapping
Explore all application capabilities designed to operate 100% without internet connectivity on the outcrop.
Analyze rock mass structures with confidence
Install RockGeo on Android and carry a full equal-area stereonet workstation directly on your smartphone.