Jacob Staff Geology

Jacob Staff Geology. One of the simplest and most useful tools in geology is the Jacob staff More robust than a tape measure or meter stick the Jacob staff is used to measure bed thicknesses on an outcrop The staff is usually 1015 m and solid enough to be held perpendicular to bedding in areas of steep dip without collapsing or bending.

A lightweight (20 oz) rugged 16 meter Jacob’s Staff constructed of anodized aluminum which breaks down into four 40 cm long sections for easy compact transport They four sections have threaded connections to create a strong rigid rod The staff is labeled with 10 cm increments A machined aluminum bracket with level bubble holds the 804715 Abney.

JACOB STAFF PARADOX GSA Bulletin GeoScienceWorld

PDF fileThe UCD Geology Jacob’s Staffs have a fixed mount for the Bruntons However you can site distances shorter than 15 meters by removing the Brunton from the mount and carefully holding it along the edge of the Jacob’s Staff in the proper orientation You can place the Brunton anywhere along the staff to measure an arbitrary thickness.

Jacob Winsett Staff Geologist Cardno ATC LinkedIn

Using a measuring rod to measure rock section thus getting the original pattern of rock which helps to unravel more complicated geologic structure.

Ball & Socket Adaptor – Brunton

Jacob Staff 54” Staff is 54” in length The top can be trimmed to accommodate mounting brackets from 065” to 11” in diameter.