WHY IS THERE SO FEW GEOCHEM ANOMALIES THAT CAN BE EXPLAINED? THE PROBABILISTIC APPROACH IN GEOCHEMISTRY!

By Team IOS, Monday, November 11, 2019

Another innovative talk at Québec-Mines 2019.

Québec, November 21 2019, 11:25 am

 

https://mern.gouv.qc.ca/quebec-mines/programme/exploration-minerale/

 

Recall your first chemistry class at high school! They shall have taught you that chemistry is an exact science. Results of a reaction can be predicted, if not it's alchemy! Then, why is exploration geochemistry so unpredictable that we have to rely on statistics or AI to outline anomalies?

 

Metal abundance in the various mediums of the secondary environment (soil, till, lake sediment, water, etc) is dictated by metal availability factored by a wide array of physico-chemical parameters, which are not commonly measured.  No surprises metal abundances seem random! So, how can we built geochemical models that are capable of predicting metal abundance in a sample? Knowing that all the influential parameters are affected by intrinsic variances and imprecisions, it is then possible to calculate a model based on appropriate probability density functions, so it will predict anticipated metal abundances based on populations parameters. Then, discrepancies between the model and the observed metal abundances can be considered as potentially “true anomalies”, discriminated from “false anomalies” caused erratic enrichments induced by local condition variability! Since the odds are not random!

 

Premises on this approach, another genuine IOS method, will be presented as the closing talk of the session on new technologies in mineral exploration, at Québec-Mines 2019. This convention, organized yearly by the Québec's Ministry of Energy and Natural Resources, is the hub for Québec's geosciences diffusion. You are warmly invited to attend, and challenge your ideas, Tuesday to Thursday November 18th to 21st, Québec's congress center.

 

Our calendars will be out, come and pick it up at our booth (#301-302)!

 

‘'There are those who follow the rules… and those who define them''

 

 

 

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