Episode summary introduction:​ ​  “How old is the Earth?” Generations of scholars have asked this fundamental question, and estimates ranged from a few thousand years to indefinite time spans. Geologic and biologic observations from the 18th and 19th centuries (like Darwin’s theory of evolution and Hutton’s concept of deep time) suggested that Earth was old – but […]

Episode summary introduction:​ ​ “How old is the Earth?” Generations of scholars have asked this fundamental question, and estimates ranged from a few thousand years to indefinite time spans. Geologic and biologic observations from the 18th and 19th centuries (like Darwin’s theory of evolution and Hutton’s concept of deep time) suggested that Earth was old – but […]

Episode summary introduction:​ ​&nbsp; “How old is the Earth?” Generations of scholars have asked this fundamental question, and estimates ranged from a few thousand years to indefinite time spans. Geologic and biologic observations from the 18th&nbsp;and 19th&nbsp;centuries (like Darwin’s theory of evolution and Hutton’s concept of deep time) suggested that Earth was old – but […]

Geological Expeditions of Yore ep.8 – Arthur Holmes

As cliché as Newton’s axiom “standing on the shoulders’ of giants” has become, for geologists this is especially true. Most of our geological expeditions are targeted based on previous hints provided by the field geologists of yore. Whether it be the orogenic history responsible for James Hutton’s famous unconformity at Siccar Point or Heim Gansser’s Himalayan expeditions disguised as a Buddhist pilgrim, it is upon their shoulders that we stand to delve deeper into geologic mysteries around the planet. In this show we will explore the adventures of intrepid explorers and geologists who laid the groundwork for the fieldwork we do today.

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Geological Expeditions of Yore ep.8 – Arthur Holmes

Geological Expeditions of Yore ep.8 – Arthur Holmes