7 Answered Questions for the topic geochronology

Geochronology Chemistry

11/05/19

How to calculate the sample total 206Pb/204Pb?
Total sample ratios:    204Pb/206Pb =  8.676 × 10-6               207Pb/206Pb =  0.1143                                   208Pb/206Pb =  0.0545                        238U/206Pb... more
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Geochronology Geology Geochemistry

06/07/19

Age of fossils found in rocks?
I have heard the claim by creationists that geologists date rocks by the fossils they contain and date fossils by the rocks in which they are found. This supposedly invalidates radiometric ages... more
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05/17/19

Newton's estimate of the age of the Earth?
I was reading many articles about estimates of the age of the Earth throughout the ages. I was dumbfounded when I read that Newton, arguably one of the greatest scientists ever to have ‘calculated’... more
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04/18/19

How to interpret the use of late and early Tertiary from older literature?
When reading older papers how should I interpret the use of "Late Tertiary" and "Early Tertiary"? Would these periods equate to Paleogene and Neogene, or was there a different accepted boundary age... more
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Geochronology Geology Economic Geology

03/27/19

In what geological situations can I find gold?
I've heard that gold ore is often associated with quartz veins. What geological processes enable gold particles to naturally cluster together like this? What characteristics/properties should I... more
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Geochronology Geology Stratigraphy

03/19/19

How to interpret the use of late and early Tertiary from older literature?
When reading older papers how should I interpret the use of "Late Tertiary" and "Early Tertiary"? Would these periods equate to Paleogene and Neogene, or was there a different accepted boundary... more
Follows • 1
Expert Answers •1

03/18/19

In what geological situations can I find gold?
I've heard that gold ore is often associated with quartz veins. What geological processes enable gold particles to naturally cluster together like this? What characteristics/properties should I... more
Follows • 1
Expert Answers •1

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