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Moving forward, technicians who set up the tools should record the pressure barrel/snubber part numbers in the orientation tool log as a means to troubleshoot suspicious data.  It is further suggested that each tool be used with the same pressure barrel/snubber each time. See Table 1 for suggested Icefield tool and corresponding pressure barrel scheme.

Icefield Tool Number

Pressure Barrel/Snubber Number

2007

101

2043

104

2052

107

Table 1: Icefield Part Numbers

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Orientation data was not uploading correctly through MUT. The first core in an uploaded file would be uploaded as the correct core. The remaining cores in that same file would be uploaded as a different core. It was strange that one core would upload as Hole C for example, while the remainder would be uploaded as Hole B, because the header line of the file is the only place that specifies the hole. The developer determined the issue was a statically defined variable. The issue would only appear if data from more than one hole is uploaded at the same time. The short holes and rapid turnover of orientation tools is likely why this issue arose this expedition and not before. A new version of MUT was rolled out and the data was re-uploaded. Old data that was incorrect was cancelled.


Appendix

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A.1 Discrete Sample Information

Table A.1 Discrete Sample Information

Sample ID

Sample

Sub-sample

Sample Type

Notes

AMS

NRM (AFD)

NRM (Thermal Demag)

ARM-ACQ

ARM AFD

IRM - AQC

IRM AFD

CUBE10821131

384-U1554A-2H-2-W-073


Extrude

Laschamp Excursion?

KLY-4

SRM


50 uT

50 uT



CUBE10821141

384-U1554A-2H-2-W-117


Extrude

Laschamp Excursion?

KLY-4

SRM/JR-6





1000 mT

CUBE10821151

384-U1554A-2H-2-W-138


Extrude

Laschamp Excursion?

KLY-4

SRM/JR-6





1000 mT

CUBE10821161

384-U1554A-2H-3-W-016


Extrude

Laschamp Excursion?

KLY-4

SRM



50 uT



CUBE10821171

384-U1554A-2H-3-W-130


Push

Laschamp Excursion?

KLY-4

SRM



50 uT



CUBE10816581

384-U1554A-2H-7-W-045


Push

Laschamp Excursion?

KLY-4

SRM



50 uT



CUBE10821391

384-U1554A-5H-6-W-024


Push

Non-Disturbed for same interval at U1554B

KLY-4

SRM/JR-6





1000 mT

CUBE10821401

384-U1554A-5H-6-W-073


Push

Non-Disturbed for same interval at U1554B

KLY-4

SRM/JR-6





1000 mT

CUBE10821411

384-U1554A-5H-6-W-105


Push

Non-Disturbed for same interval at U1554B

KLY-4

SRM



50 uT



CUBE10821331

384-U1554B-5H-2-W-034


Push

Disturbed core "suck-in"

KLY-4

SRM/JR-6





1000 mT

CUBE10821341

384-U1554B-5H-2-W-051


Push

Disturbed core "suck-in"

KLY-4

SRM/JR-6

Post 1000 mT IRM

50 uT

50 uT

1000 mT

1000 mT

CUBE10821351

384-U1554B-5H-2-W-091

A

Push +90

Disturbed core "suck-in": Edge

KLY-4

SRM/JR-6


50 uT

50 uT


1000 mT

CUBE10821361

384-U1554B-5H-2-W-091

B

Push +90

Disturbed core "suck-in": Crown

KLY-4

SRM/JR-6


50 uT

50 uT


1000 mT

CUBE10821371

384-U1554B-5H-2-W-091

C

Push +90

Disturbed core "suck-in": Opposite Edge

KLY-4

SRM/JR-6


50 uT

50 uT


1000 mT

CUBE10821381

384-U1554B-5H-2-W-134


Push

Disturbed core "suck-in"

KLY-4

SRM/JR-6

Post 1000 mT IRM

50 uT

50 uT

1000 mT

1000 mT

CUBE10834371

384-U1555F-3R-1-W-033


Cube

Training


Measured without any demag steps






CYL10834381

384-U1555F-4R-1-W-074


Mini-core

Training


Measured without any demag steps






OTHR10834391

384-U1555F-4R-2-W-035

1

Gararray (Gary Array)

1 cm slab cut into 15 subsamples


SRM






OTHR10834401

384-U1555F-4R-2-W-035

2

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834411

384-U1555F-4R-2-W-035

3

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834421

384-U1555F-4R-2-W-035

4

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834431

384-U1555F-4R-2-W-035

5

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834441

384-U1555F-4R-2-W-035

6

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834451

384-U1555F-4R-2-W-035

7

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834461

384-U1555F-4R-2-W-035

8

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834471

384-U1555F-4R-2-W-035

9

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834481

384-U1555F-4R-2-W-035

10

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834491

384-U1555F-4R-2-W-035

11

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834501

384-U1555F-4R-2-W-035

12

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834511

384-U1555F-4R-2-W-035

13

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834521

384-U1555F-4R-2-W-035

14

Gararray

1 cm slab cut into 15 subsamples


SRM






OTHR10834531

384-U1555F-4R-2-W-035

15

Gararray

1 cm slab cut into 15 subsamples


SRM






CYL10834541

384-U1555F-5R-1-W-100


Mini-core

Training


Measured without any demag steps

YES





CUBE10834551

384-U1555F-6R-1-W-041


Cube

Training


Measured without any demag steps

YES