petrographer

However, the most important tool for the petrographer is the petrographic microscope.

Someone who studies petrography is called a petrographer.

In addition to naked-eye and microscopic investigation, chemical research methods of are of great practical importance to the petrographer.

Alphonse Francois Renard, geologist and petrographer (19th century)

He lectured on geology at Edinburgh before joining the Survey as Petrographer in London in 1901.

Although point counting is time consuming, any petrographer should practice this method on several thin sections before proceeding to much more rapid methods, such as the use of visual estimates.

Working in the Lake District, Rutley began to make a special study of rocks and rock-forming minerals, and soon qualified as acting petrographer on the Geological Survey.

Albert Streckeisen (8 November 1901-29 September 1998) was a Swiss petrographer and petrologist, the son of Basel forensic scientist Adolf Streckeisen.

Over the years the first edition (1954) of this work has acquired something of the aura of a 'classic' text, and one or other of the editions is never likely to stray far from the student petrographer's microscope.

Mapped from air photos and surveys by Norwegian Antarctic Expedition, 1956-60; remapped by Soviet Antarctic Expedition, 1960-61 and named after Soviet petrographer V.A. Nikolayev.

The following year he joined the Michigan State Geologic Survey as a petrographer, and he remained in that post into 1892 while also serving as an instructor at the Michigan College of Mines.

Mr. Scali, who runs part of a concrete-analysis laboratory here operated by W. R. Grace & Company, is a petrographer, a profession that derives its name from the Greek roots for "rock" and "record."

Returning to Montreal, he was appointed Assistant Chemist at the Geological Survey of Canada (GSC), and the following year (when the GSC moved to Ottawa), Assistant Chemist and Petrographer.

A sediment may exhibit one or more phases of any, or all, of these processes; the task of the sedimentary petrographer is to unravel the different events, place these in a paragenetic sequence and then build on these in interpreting the burial history of the sediment.

Dipayan Jana, a petrographer, made a presentation to the ICMA (International Cement Microscopy Association) in 2007 and gave a paper in which he concludes "we are far from accepting even as a remote possibility of a 'manmade' origin of pyramid stones."