Get in Touch

Category Snowden Optiro Podcasts & News

Optiro’s summary of the RSC Resource Reporting Intelligence for 27 Feb to 5 March 2017.

Optiro's summary of the RSC Resource Reporting Intelligence for the week of 27 Feb to 5 March 2017 covers: types of technical reports published; Project locations: Project commodities; Resource Estimation and Reserve reports by Report Authors – since October 2014: top 3 most significant drill intersections of the week / month and for 2017 to date.

Nevsun Resources Ltd – Timok in Serbia – resource definition; 3m @ 6.0% Cu, 3.79g/t Au from 438.8m
Premier Gold Mines Ltd – Hasaga in Canada – resource definition; 0m @ 10.94g/t Au from 771.0m
SkyHarbour Resources Ltd – Moore Lake in Canada – exploration; 5.9m @ 6.0% U308 from 261.6m
The top 3 most significant drill intersections in February 2017:

Nevsun Resources Ltd – Timok in Serbia – resource definition; 3m @ 6.0% Cu, 3.79g/t Au from 438.8m
UEX Corp – Christie Lake in Canada – exploration: 17.70m @ 11.46% U308 from 475.10m
Arizona Mining Inc – Hermosa in USA – resource definition; 122.5m @ 71.23g/t Ag, 7.15%Pb, 12.75% Zn, 0.17%Cu from 537.9m
Top 3 most significant drill intersections in 2017 to date:

Read MoreOptiro’s summary of the RSC Resource Reporting Intelligence for 27 Feb to 5 March 2017.

30 Seconds of Info from Ian Glacken – Capping before compositing or after?

This week's 30 Seconds of Info comes from Ian Glacken - Optiro's Director of Geology: Capping before or after compositing? This is a controversial topic which has adherents on both sides, although most believe that capping should be carried out after compositing, when the data has equal support. If you are going to cap before you composite the data, then the capping should be carried out with the variable as ‘metal’ or accumulation (grade times length), rather than just the assay itself. Contact: iglacken@snowdenoptiro.com

Read More30 Seconds of Info from Ian Glacken – Capping before compositing or after?

Optiro’s summary of the RSC Mineral Resource Reporting Intelligence for 20-26 Feb 2017

Optiro's summary of the RSC mineral resource reporting intelligence report covers: number of reports published; project locations; project commodities; globally, the most popular resource and reserve estimation report authors; the top 3 drill intersections for the week and the top 3 most significant drill intersections for 2017.

Read MoreOptiro’s summary of the RSC Mineral Resource Reporting Intelligence for 20-26 Feb 2017

Optiro’s summary of the 13-19 Feb 2017 RSC Resource Reporting Intelligence report

Optiro's summary of the RSC Resource Reporting Intelligence report for 13-19 February 2017 gives information about: the new technical reports that were published; the project locations; the project commodities; the Resource Estimation and Reserve Estimation report authors since October 2014; and the top 3 most significant drill intersections.

Read MoreOptiro’s summary of the 13-19 Feb 2017 RSC Resource Reporting Intelligence report

30 Seconds of Info from Ian Glacken – Director of Geology: What to do if you have conditional bias

If you have conditional bias:  Get more and closer-spaced data, estimate into larger volumes (this generally works – but not always), think about a change of support if this isn’t possible, and choose an estimation method which doesn’t exaggerate the…

Read More30 Seconds of Info from Ian Glacken – Director of Geology: What to do if you have conditional bias

Optiro’s weekly summary of the RSC Resource Reporting Intelligence

Optiro’s weekly summary of the RSC Resource Reporting Intelligence for 6-12 Feb 2017 covers information about the number and type of technical reports published, the project locations, the commodities, globally the resource estimation and reserve estimation report authors since October 2014, the top 3 significant drill intersections of the week and the year to date.

Read MoreOptiro’s weekly summary of the RSC Resource Reporting Intelligence

This week’s 30 Seconds of Info: Be aware of the limitations of ID estimation. Ian Glacken – Director of Geology

Ian Glacken - Director of Geology's 30 Seconds of Advice. Be aware of the limitations of ID estimation: Inverse distance (ID) is often touted as a viable alternative to Ordinary Kriging (OK), and it can be – but you must appreciate its two or three very serious limitations and correct for these. The limitations are that there is no accounting for data clustering (unlike OK) and the choice of a power is essentially arbitrary. As long as you are aware of these issues, ID can sometimes be used as a ‘check’ technique for OK.

Read MoreThis week’s 30 Seconds of Info: Be aware of the limitations of ID estimation. Ian Glacken – Director of Geology

30 Seconds of Info from Ian Glacken – Director of Geology: Always look at a range of top-cut (capping) techniques

This week's 30 Seconds of Info comes from Ian Glacken - Director of Geology: Always look at a range of top-cut (capping) techniques: There is no single ‘magic bullet’ technique for top-cutting a set of data; the top-cut chosen will depend upon the nature of the data, the support of the data and the location of the sample points...

Read More30 Seconds of Info from Ian Glacken – Director of Geology: Always look at a range of top-cut (capping) techniques

30 Seconds of Info from Ian Glacken – Director of Geology: Blanks should never be inserted at regular intervals within the sample stream

Blanks should never be inserted at regular intervals within the sample stream:  It is always much more easy for automation of the QAQC process that blanks are inserted at regular intervals, but this is not optimal and is in fact…

Read More30 Seconds of Info from Ian Glacken – Director of Geology: Blanks should never be inserted at regular intervals within the sample stream