An exact knowledge of rock formation ages is perhaps the single most important tool needed
for assembling the geologic record into a coherent history. Moreover, the age of Earth and …

The dominant occurrence of phosphate minerals in crystalline rocks is as accessory phases,
most notably apatite, monazite, and xenotime. Because these minerals tend, to varying …

In the early twentieth century, American earth scientists were united in their opposition to the
new--and highly radical--notion of continental drift, even going so far as to label the theory" …

Burchfield charts the enormous impact made by Lord Kelvin's application of thermodynamic
laws to the question of the earth's age and the heated debate his ideas sparked among …

Not quite a history of geology, Thinking about the Earth is a history of the geological tradition
of Western science. Beginning with a discussion of" organic" views of the earth in ancient …

In the early twentieth century the Earth's age was unknown and scientific estimates, none of
which were based on valid premises, varied typically from a few millions to billions of years …

Where would Earth science be without zircon? Tiny crystals of zircon occur in many rocks,
and because their atomic structure remains stable over very long periods of geological time …

The origins and near-surface distributions of the~ 250 known uranium and/or thorium
minerals elucidate principles of mineral evolution. This history can be divided into four …

With the growing recognition during the last two centuries that the Earth has an immense
age and processes over long periods of time have changed the morphology and …

U Pb ages of zircons and monazites from ortho-and paragneisses representing the major
crystalline basement units of Sri Lanka establish a new geochronological framework, which …