¿ªÔÆÌåÓý
Dud, the veins at White Signal where Charles is digging around are also Au-Bi-Cu, in fact originally mined for gold. Locally Ag and Pb, too.
Steve?
From: [email protected] <[email protected]> on behalf of Dude <dfemer@...>
Sent: Tuesday, January 28, 2020 12:35 PM To: [email protected] <[email protected]> Subject: Re: [XRF] cyrtolite Little Patsy OT- XRF Bassetite under X-Ray tube ?
Charles, It is a Si-Pin. You¡¯ll note the 4 pt cal is very linear with deviations of 0, -0.15, 0.03 and 0.16 and the same when ?using a quadratic fit. Geo reran the cal and only shifted the 5.6 from 202 to 198 which didn¡¯t change anything. The problem is the mineral is supposedly a very simple Fe, U phosphate. The Fe 6.4 line is located on the left shoulder of the strong peak located at 6.63. The U, although noisy, falls pretty much where it belongs. So what is the broad peak complex at 6.63 due to? Lots of rare earths fall in this region but I wouldn¡¯t expect that much of a response and I don¡¯t see anything lining up. I guess the best approach would be to re run this sample at a 4096 conversion gain and increase the beam flux and count time. Dud ?
?Behalf Of
Charles David Young ? Yeah, this confuses me as well.? Is this Si-PIN?? The cal is 4 points that are not linear and very different from the 2 point cal that I have been using with Si-PIN. ? Charles ? On Mon, Jan 27, 2020 at 11:47 AM <GEOelectronics@...> wrote:
|
