Download - with new field survey and sample reanalysis data to ... · ultra-trace aqua-regia digestion ICP-MS package for 53 elements. The 2012 NVI project includes new stream based sampling

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Page 1: with new field survey and sample reanalysis data to ... · ultra-trace aqua-regia digestion ICP-MS package for 53 elements. The 2012 NVI project includes new stream based sampling

Ackn

ow

led

gm

en

ts

Ackn

ow

led

gm

en

ts

E. Jackam

an, S. R

eichheld, J. Dim

ock, J. Constable

and B. E

lder (Noble E

xploration Services L

td.).

A. R

ukhlov (BC

Geological S

urvey).

The m

any services in the comm

unities of Holberg,

Port A

lice, Port H

ardy, Port M

cNeill, S

ayward,

Winter H

arbour, Woss and Z

eballos.

AL

S C

anada Ltd., B

ecquerel Laboratories Inc. and

Island Coastal E

conomic T

rust.

Acm

e Analytical L

aboratories Ltd.

M. M

cCurdy and

E. Jackam

an, S

. Reichheld and J. D

imock (N

oble Exploration S

ervices Ltd.).

A. T

herriault (NR

Can); A

. Rukhlov (B

CG

S, M

EM

NG

).

Acm

e Analytical L

aboratories Ltd and B

ecquerel Laboratories Inc.

Natu

ral R

eso

urce

s C

anada

Resso

urce

s natu

relle

s C

anada

OC

LH

U

SM

IT

B

I

I

R

A

B

G

Y

E

E

O

V

LR

OU

GS

I

CL

A

The reanalysis of archived sedim

ent samples has been sponsored by G

eoscience BC

since 2007. T

hese programs have significantly enhanced the B

C R

GS

database by providing a w

ide range of new analytical inform

ation at improved detection levels.

McL

eod Lake (N

TS

093J):

1145 samples analyzed for 35 elem

ents

by instrumental neutron activation

analysis (INA

A).

Lardeau (N

TS

082K):

1224 samples by ultra-trace aqua-regia

digestion (0.5 g) ICP

-MS

technique

for 53 elements .

RG

S S

am

ple

Re

an

aly

sis

NE

W D

ATA

AV

AIL

AB

LE

R

OU

ND

UP

20

13

Sed

imen

t Sam

ple

s b

y IN

AA

...S

ed

ime

nt S

am

ple

s b

y IC

P-M

S ...

Geoscien

ce BC

Rep

ort 2013-04

Geoscien

ce BC

Rep

ort 2013-06

Acm

e Lab

oratories U

ltra trace Aq

ua R

egion D

igestion b

y ICP

Mass S

pec ...

Becq

uerel L

aboratories

INA

A G

old +

33 ...

No

rthern

Van

co

uver Is

lan

d

Exp

lora

tion

Geo

scie

nce P

roje

ct

NV

I - Infill G

eo

ch

em

ical S

urv

ey

NV

I - Till S

am

ple

Rean

aly

sis

Stream

-based sample collection w

as carried out in the summ

er of 2012. M

oss-mat sedim

ent and water sam

ples were acquired

from over 700 sites. T

he sediment sam

ples have been analyzed for base and precious m

etals, pathfinder elements and rare earths

by an ultra trace aqua-regia digestion ICP

-MS

package and INA

A.

Waters have been analyzed for pH

, conductivity and fluoride.

To

further augm

ent N

VI's

geochemical

database, till

samples

collected in the 1990s as part of the northern Vancouver Island

drift prospecting program w

ere recovered from storage and a

portion of each sample as been recovered for analysis by an

ultra-trace aqua-regia digestion ICP

-MS

package for 53 elements.

The 2

012 N

VI p

roject in

cludes n

ew stream

based

samplin

g p

lus th

e reanaly

sis of till sam

ples. T

he w

ork

will g

enerate n

ew g

eoch

emical in

form

ation th

at will

stimulate m

ineral ex

plo

ration in

the reg

ion an

d co

mplim

ent o

ther co

mponen

ts of th

e initiativ

e such

as a hig

h-reso

lutio

n airb

orn

e geo

physical su

rvey

as well

as earlier geo

chem

ical surv

ey w

ork

and g

eolo

gical m

appin

g. S

urv

ey resu

lts w

ill be av

ailable in

sprin

g 2

013.

Govern

men

t-funded

reconnaissan

ce-scale regio

nal g

eoch

emical su

rvey

s (R

GS

) hav

e been

conducted

in B

C sin

ce 1976. C

urren

tly, more th

an

63,0

00 d

rainag

e sedim

ent an

d w

ater samples h

ave b

een co

llected at an

2

averag

e den

sity o

f one sam

ple fo

r every

12 k

m.

a com

preh

ensiv

e multi-elem

ent g

eoch

emical d

atabase th

at is routin

ely

use

d

to

gu

ide

a

nd

su

pp

ort

min

era

l e

xp

lora

tion

a

ctiv

ities.

Surv

ey resu

lts com

prise

Effo

rts to m

axim

ize the u

tility o

f the B

C R

GS

datab

ase inclu

de b

oth

new

sam

plin

g

and

enhan

cemen

ts to

av

ailable

analy

tical in

form

ation.

In 2

013, G

eoscien

ce BC

supported

the fo

llow

ing g

eoch

emical in

itiatives:

Rean

alysis of 2586 stream sedim

ent

samples, previously collected in N

TS

082F and K

, for 53 elements by aqua-

regia ICP

-MS

.

Rean

alysis of 450 till samples,

previously collected in northern

Vancouver Island, for 53 elem

ents

by aqua-regia ICP

-MS

.

Rea

nalysis o

f 1145 strea

m

sedim

ent sa

mples, p

revio

usly

collected

in N

TS

093J, fo

r 35

elemen

ts by IN

AA

.

New

stream

sedim

ent a

nd

wa

ter infill sa

mp

ling co

verin

g

areas coin

ciden

tal with

new

airbo

rne g

eop

hy

sics wo

rk.

20

13 G

eo

scie

nce B

C

Geo

ch

em

ical P

roje

cts

Geo

scie

nc

e B

C S

po

nso

red

G

eo

ch

em

ical P

roje

cts

- 2006 to

2012

Region

al Su

rveys ...S

amp

le Rean

alysis ...

10,833 S

AM

PL

ES

CO

LL

EC

TE

D

34,868 S

AM

PL

ES

RE

AN

AL

YZ

ED

Up

datin

g th

e B

ritish

Co

lum

bia

Reg

ion

al G

eo

ch

em

ical S

urv

ey d

ata

base

with

new

field

su

rvey a

nd

sam

ple

rean

aly

sis

data

to s

up

po

rt min

era

l exp

lora

tion

Wayn

e J

ackam

an

& R

ay L

ett

Ro

un

du

p 2

013