1 Middle Horizon Wari (AD 600-1000). The strongest evidence for the pre-Inca use of quipu record keeping is from the Middle Horizon Wari (or Huari) empire, an early urban and perhaps state level Andean society centered at the capital city of Huari, Peru. 2  Late Horizon Inca (1450-1532).
The salaries of petroleum geologists correspond to their years of experience, according to the 2012 salary survey released by the American Association of Petroleum Geology. For example, workers with up to two years of experience averaged $98,700 per year, with a high of $110,000, and a low of $85,000.
These oil and gas careers pay very well for those who have the skills and experience necessary to succeed. In fact, a geologist in the petroleum industry with a Ph.D. and two years of experience can make $80,000 annually. Six-figure salaries can be earned after gaining 10 years of experience. Veteran geologists with 20 or more years of experience can expect annual salaries of $120,000 to nearly $200,000.