OR/15/033 Appendix 1: Carrock Mine samples collected May 2013

Shaw, R P. 2015. The Underground Geology of part of the Carrock Tungsten Mine, Caldbeck Fells. British Geological Survey Internal Report, OR/15/033.

Water samples

pH meter calibration

Air temperature 10.00⁰C Buffer

pH = 6.95

A – Grainsgill Beck downstream of mine levels and tips just upstream of road bridge:

Temperature = 6.2⁰C

pH = 7.15

B - Grainsgill Beck just below mine levels and tip:

Temperature = 5.7⁰C

pH = 7.16

C - Grainsgill Beck upstream of all workings adjacent to old mine water pipe intake:

Temperature = 6.9⁰C

pH = 7.03

J – Brandy Gill – at bottom just upstream of mine road bridge:

Temperature = 5.6⁰C

pH = 7.27

All underground water samples were collected before water was otherwise disturbed.

D – No 1 level entrance by gate:

Temperature = 6.4⁰C

pH = 7.60

E – Harding Vein South (level here ‘smells’ (chemicals in tailings? 30 years after emplacement in old stopes):

Temperature = 5.1⁰C

pH = 7.06

F – Cross cut to Smith Vein:

Temperature = 5.1⁰C

pH = 7.55

G – Harding Vein North:

Temperature = 6.5⁰C

pH = 7.69

Note that dipiridol largely leaked prior to sampling

H – Harding Vein North – beyond Emmerson Vein junction (water deep with slow velocity):

Temperature = 6.1⁰C

pH = 8.07

I – Emmerson Vein Junction:

Temperature = 7.69⁰C

pH = 7.27

name="_TOC_250002"

Z – “Brown” tailings from 1970s/80s mill tip on north bank of gill. Y – “White” 1914/18 vintage tailings on south side of gill.

X – Tailings by mine site of probable 1970s/80s vintage but could be older and may incorporate 19th century lead mine tailings.

W – Harding Vein South from level floor near cross cut level junction.

V - Harding Vein South from level floor adjacent to dam blocking stope which contains tailings disposed of into old stopes in 1970s/80s.

U – Grab sample of ore material from ore chute on Harding Vein North. T – Ore material from level floor Harding Vein North.

name="_TOC_250001"

name="Smith_Vein_workings"Smith Vein workings

1 – Greisenised granite, south forefield. 2 – Granite adjacent to contact.

3 – Hornfels adjacent to granite contact 4 – Hornfels 5 m into ‘new’ crosscut.

5 – Hornfels near 1st lead vein. 6 - ?Hornfels at gabbro contact.

7 – Gabbro at gabbro/hornfels contact. 8 – Veins at gabbro/hornfels contact. 9 – Gabbro at 1st blind rise.

!--[if !supportLists]-->10  !--[endif]-->– Gabbro at 2nd blind rise.

!--[if !supportLists]-->11  !--[endif]-->– Gabbro Smith Vein North approaching Smith Vein East. 12 – Loose core sample in same area

13 – Smith Vein North forefield – very sulphide rich. 14 – Smith Vein East forefield - very sulphide rich. 15 – Hornfels – 1m from ‘big’ lead vein.

name="Harding_Vein_Workings"Harding Vein Workings

!--[if !supportLists]-->16  !--[endif]-->– Gabbro from forefield.

name="Waterfall_Vein_Workings"Waterfall Vein Workings

!--[if !supportLists]-->17  !--[endif]-->– Altered gabbro.

name="No_1_Level"No 1 Level

TUNGSTEN VEINS

Smith Vein

V1 – Near south forefield. V2 - Near south forefield.

V3 – Blue secondary coating near forefield.

V4 – Wolframite ca 50m into Smith Vein South. V5 – Smith Vein North forefield – fluorite.

V6 - Smith Vein North forefield – orange fluorescing mineral (calcite?). V7 - Smith Vein East forefield.

V8 - Smith Vein East forefield - scheelite.

name="Harding_Vein"Harding Vein

V9 – Vein north of Emmerson Cross Cut.

V10 – Vein in last boxhole south of Emmerson Cross Cut.

name="Waterfall_Vein"Waterfall Vein

V11 – Forefield north end.

V12 – South of Harding North Cross Cut.

LEAD VEINS

V13 – (2 bags) ‘Large’ lead vein east wall Smith Vein North. V14 – ‘Small’ lead vein Smith Vein North.

V15 – ‘Small’ lead vein in main cross cut between Smith and Harding Veins. V16 – ‘Large’ lead vein west wall Harding Vein North.

name="No_3_Level"No 3 Level

name="Tungsten_Veins"TUNGSTEN VEINS

name="Smith_Vein"Smith Vein

V17 – Sulphide rich tungsten ore, east wall. V18 – Sheelite ore, east wall.

name="Lead_Veins"LEAD VEINS

V19 – ‘out-bye’ lead vein.