Pueblo Escondido An early El Paso phase village in New Mexico s Tularosa Basin was examined with large-area geophysical surveys (covering 1.2 ha) and limited test excavations. Geophysical surveys included ground-penetrating radar, magnetometry, magnetic susceptibility, and electrical conductivity....

Electrical Resistance Electrical resistance is the degree to which a material restricts the passage of an electric current. Variation in electrical resistance is almost entirely dictated by the amount of moisture in the soil. Coarse grained, well-drained soils (gravels, sands) exhibit a relatively h...

Tiwanaku, Bolivia Tiwanaku is situated near the southeastern shore of Lake Titicaca in Bolivia, near the border with Peru. During its heyday ca. AD 500 1000, it was the primary political and economic power in the southern Andes. Ground-penetrating radar (GPR), magnetometry, magnetic susceptibili...

FOXFIRE GEOPHYSICS Archaeological Remote-Sensing HOME THE PRINCIPALS SERVICES CASE STUDIES SENSE THE INVISIBLE You ve had a team of archaeologists pushing shovels for months, if not years. An historian has compiled all the oral history and written records. Lab specialists have gone cro...

Magnetometry Magnetometry is a method of passively measuring magnetic fields. Two types of magnetism are measured simultaneously with magnetometry: induced and thermoremanent. Induced magnetism is directly related to MS, but a magnetometer measures it in a different way than EMI. The difference lies...