description Alva C. Ellisor Overview
Alva C. Ellisor was an influential American micropaleontologist who significantly advanced the use of microfossils in oil and gas exploration during the early 20th century. Working for Humble Oil and Refining Company, she established and led the company's first paleontological laboratory in Texas. In 1925, she co-authored a landmark study on the Tertiary stratigraphy of the Gulf Coast, demonstrating how foraminifera could be used to correlate geological layers.
Her work helped legitimize the role of women in the petroleum geology sector.
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Who was Alva C. Ellisor?
Alva C. Ellisor was a pioneering American micropaleontologist who made significant contributions to the field of geology in the early 20th century. She is best remembered for her work using microfossils to date rock strata for petroleum exploration.
What was Alva C. Ellisor's role in the oil industry?
She established and led Humble Oil's very first paleontology laboratory. Her expertise in micropaleontology was crucial for the company, as it allowed geologists to identify oil-bearing rock layers with much greater accuracy.
Why is Alva C. Ellisor's 1925 study considered significant?
In 1925, she co-authored a landmark study that successfully used microfossils to correlate subsurface strata in the Gulf Coast region. This methodology revolutionized petroleum exploration by proving that microscopic fossils could map underground geological formations.
Why was Alva Ellisor's work important to geology?
By proving that microscopic fossils could map underground rock layers, she transformed how the petroleum industry located oil reserves. Her micropaleontology techniques established a standard methodology still used by geologists today.
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