Hydrocarbons from Mines and Deposits in the Herkimer Mining District
The evidence that most of the black substance we find in connection with Herkimer diamonds is related to the
migration of oilis continually increasingform the early mineralization to the later at the district.. There are multiple
sources of evidence and some of that will be shown here - pictures of the hydrocarbon as it occurs in the rock.,
Click on the button next - to see the sulfides page
There is a map showing that there are
oil and gas wells not far from from the
Herkimer Mining District. What is
interesting is that some of these wells
have fault controlled, and layer
controlled, dolomite mineralization very
similar to the Herkimer Mining District.
The diagram showing this also has
some size references, that might be
similar to what we see in the district
There are a series of photos showing the
different variations of the hydrocarbon
found in the Herkimer Mining District.
These include the following:
1. Coatings - common
2. As sand layers
3. Vug filling
4. Small grains/dust
5. Spheres (variation)
6. Containing Holes
9. Veins (+/- clay).
The intermingling of clay with
hydrocarbon in veins, cross - strata
fracture fillings, is connected with vertical
flow and likely higher temperatures.
Inclusions of hydrocarbon within quartz
is given its own seperate pags because
of the wide variation in features. Click
above to go to the inclusion page.
In the slide show, there is a discussion the CORRECT way to lablel any specimen which contains black or brown
hydrocarbon material. The term “anthraxolite” should not be used. Use the label “solid hydrocarbon” if its black
(pyrobitumen is also acceptable) and if brown then the term hydrocarbon. More appropriate labelling until your can get
a chemical anaylsis.
An important part of the “Oil and Seed Crystal Theory” for making Herkimer
diamonds is that there was a mixing of hydrocarbon solutions and solutions
carrying quartz. If the the theory is to represent what happened across the
district then evidence of this interactions should be visible in the rocks. Click
button to see this evidence.
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