[meteorite-list] relationship between CV and CK

From: Graham Ensor <graham.ensor_at_meteoritecentral.com>
Date: Sat, 5 Jan 2019 21:39:28 +0000
Message-ID: <CAJkn+kaEcAZFwxvq_qro33bq2QYQPLhmMSM0pX9s65bOBkHA9w_at_mail.gmail.com>

Interesting stuff Dustin. I need to read more...if I find other info or
studies I let you know. Helping at the moment with materials for a parent
body study but it does not include CVs or CKs at present.

On Sat, 5 Jan 2019, 17:08 Dustin Dickens via Meteorite-list <
meteorite-list at meteoritecentral.com wrote:

> Hello dear meteorite mavericks and mavens,
>
> It has been a while since I have posted to the list. I needed to test
> to see if my account was working before I posted an ad, but thought
> why waste the electrons and decided to test it with a topic I have
> been intrigued with lately; the relationship of the CK to the CV
> carbonaceous chondrites.
>
> Is anyone currently working on this? I would enjoy learning what
> direction you think the latest data / research is pointing. Based on a
> recent 2016 paper, see ref below, what I had thought was a relatively
> well established isotopic relationship between the CV and CK
> chondrites, pegging them to the same parent body, now seems to be in
> question.
>
> This paper raises significant issues with magnetite compositional
> differences in the unequilibrated CK and the CV, as well as "Oxygen
> fugacities and temperatures in the CV-ox - CK". This seems difficult
> to reconcile with some of the previous research I have read on this
> topic. I am hoping others might be interested in learning more about
> this, and discussing it a bit.
>
> "Magnetite in the unequilibrated CK chondrites: Implications for
> metamorphism and new insights into the relationship between the CV and
> CK chondrites Tasha L. DUNN1*, Juliane GROSS2,3, Marina A. IVANOVA4 ,
> Simone E. RUNYON5 , and Andrea M. BRUCK6" Meteoritics & Planetary
> Science 1?20 (2016) doi: 10.1111/maps.12691
>
>
> https://geology.rutgers.edu/images/Dunn_et_al-2016-Meteoritics__Planetary_Science.pdf
>
> Kindest regards,
>
> Dustin Dickens
> TOP Meteorite
> dustin at topmeteorite.com
> https://topmeteorite.com
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Received on Sat 05 Jan 2019 04:39:28 PM PST