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Posts by dwarrowdelf

Showing 410 results below:

Author Message
Topic: Shaft Exploring
dwarrowdelf

Forum: General Chat   Posted: 02/10/2020 22:06:43   Subject: Shaft Exploring
That's my partner's christmas present sorted then! :)

might get my dad one as well as he leaves dirty footprints on the carpet!

just noticed the price though - maybe not ;(
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 29/06/2020 21:21:33   Subject: Rocks found on Cwmorthin tip Help with identification
[quote="John Mason"]The banded tuffs on the tips at Cwmorthin host thin veins that occasionally have pockets of fine crystals. Quartz, albite and anatase all occur, but especially good are the rare-ea
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 29/06/2020 17:40:17   Subject: Rocks found on Cwmorthin tip Help with identification
Many thanks for the interesting info everyone. Yes I was also under the impression that the geology was Ordovician, although some of the igneous intrusions in Cwmorthin/Oakeley may be later. but how m
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 22/06/2020 21:55:01   Subject: Rocks found on Cwmorthin tip Help with identification
yes, I've managed to get post from Wales :)
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 22/06/2020 21:18:14   Subject: Rocks found on Cwmorthin tip Help with identification
Interesting feed back, worth a try, but I won't risk damaging the sample for now as I sadly won't be back to find any more on the tips any time soon in the present situation :(
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 22/06/2020 10:58:06   Subject: Rocks found on Cwmorthin tip Help with identification
Here is another rock I found around Cwmorthin in the vicinity of the tips. It has some attractive colours and an area which almost looks a bit like flow banding. It is heavily eroded on one side. I
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 28/04/2020 23:09:30   Subject: Rocks found on Cwmorthin tip Help with identification
Come to think of it, does anyone know if the dolerite which intrudes the slate in Cwmorthin quarry ,is a quartz dolerite or an olivine dolerite?
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 27/04/2020 22:18:13   Subject: Rocks found on Cwmorthin tip Help with identification
The green crystals seem to be in bands running across the material and associated with patches of lighter minerals to give the"tapestry band" like effect,although in other samples, these lighter patch
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 27/04/2020 21:34:41   Subject: Rocks found on Cwmorthin tip Help with identification
I think any ores worth extracting in Cwmorthin would have been found long ago. However there are many trace minerals in Cwmorthin and Oakeley the names of which mostly escape me.
Topic: Rocks found on Cwmorthin tip Help with identification
dwarrowdelf

Forum: North Wales   Posted: 27/04/2020 14:27:21   Subject: Rocks found on Cwmorthin tip Help with identification
I have uploaded some photos of rocks other than slate, that I have found on and around the Cwmorthin tips in recent years

Any help with identification would be most welcome


Topic: location of photo in Cwmorthin
dwarrowdelf

Forum: North Wales   Posted: 26/04/2020 22:22:22   Subject: location of photo in Cwmorthin
I was just wondering about the location of the following photo by Barney which I came across while looking though the cwmorthin album


[link]78214[linkphoto]78214[/linkphoto][/link]
Topic: Vanoord's a Joke
dwarrowdelf

Forum: General Chat   Posted: 11/04/2020 18:22:07   Subject: Vanoord's a Joke
You need to be careful, people are going crazy about being in lockdown. I’ve actually
just been talking about this with the microwave and toaster while drinking coffee and
all of us agreed t
Topic: Ways to pass the time when you don't have a mine in the garden
dwarrowdelf

Forum: General Chat   Posted: 11/04/2020 12:06:07   Subject: Ways to pass the time when you don't have a mine in the garden
Will have to try all this ;D

particulary good for anyone who lives in a small flat as it REALLY WILL annoy the neighbours :o


As it is I have been trying to feel at home m
Topic: Merry Christmas 2019
dwarrowdelf

Forum: General Chat   Posted: 25/12/2019 15:47:01   Subject: Merry Christmas 2019
A very Happy Christmas and New year to all !

and looking forward to some more great exploring ! :)
:)
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 16/12/2019 13:51:57   Subject: Cwmorthin - geology question
[link]119544[linkphoto]119544[/linkphoto][/link]


Sorry, Photo should be viewable now!

:)


Looking up into chamber 29 floor 1 Oakeley/Cwmorthin

T
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 04/12/2019 13:41:35   Subject: Cwmorthin - geology question
[link]97179[linkphoto]97179[/linkphoto][/link]


I have finally got around to finding a photo of what looks like an example of another kind of strata in Cwmorthin/Oakeley. A large piece
Topic: Cwmorthin chamber 8 East
dwarrowdelf

Forum: North Wales   Posted: 28/09/2019 21:26:29   Subject: Cwmorthin chamber 8 East
Many thanks for the info. I don't really know much about the chambers lying to the east of 8E, except
some mention that they have all experienced considerable falls and aren’t really recommended
Topic: Cwmorthin chamber 8 East
dwarrowdelf

Forum: North Wales   Posted: 25/09/2019 23:50:31   Subject: Cwmorthin chamber 8 East
The stairs still seem Ok'ish, but the chamber needs care and attention to traverse, and I advise against taking newbies there. There are safer ways around now, especially with the accessibility of th
Topic: Cwmorthin chamber 8 East
dwarrowdelf

Forum: North Wales   Posted: 24/09/2019 22:33:38   Subject: Cwmorthin chamber 8 East
Maybe I'm missing something, but I don't ever remember seeing the floor B level in either direction in chamber 8 E old vein, (stairs chamber). Maybe this is only because I've been concentrating on
Topic: Cwmorthin stripy vein
dwarrowdelf

Forum: North Wales   Posted: 20/09/2019 13:57:24   Subject: Cwmorthin stripy vein
I have often wondered if the stripy vein between the back and old veins in Cwmorthin was named because of the presence of bands of striped "chert" as seen best in the opencast above Cwmorthin. I am c
Topic: G Pump Turbine and belt sheaves (photo)
dwarrowdelf

Forum: North Wales   Posted: 12/04/2019 13:54:15   Subject: G Pump Turbine and belt sheaves (photo)
Always been interested in this. Could never quite work out its relationship to the more well known bits
Topic: NAMHO Conference 2019
dwarrowdelf

Forum: Events   Posted: 05/02/2019 19:03:10   Subject: NAMHO Conference 2019
This sounds really great, especially the geology, which my main interest when I go underground. Must try and make it this time! :)

Sadly, so far, I've never managed to get to a NAMHO con
Topic: Caban- Oakeley and Votty magazine
dwarrowdelf

Forum: General Chat   Posted: 10/01/2019 13:50:53   Subject: Caban- Oakeley and Votty magazine
I bought the full set of unwatermarked copies on disc from JonK a while ago: A wonderful resource which I wouldn't be without. Would be keen to know if this is the whole set, which I believe it is -
Topic: Merry Christmas 2018!
dwarrowdelf

Forum: General Chat   Posted: 25/12/2018 15:38:42   Subject: Merry Christmas 2018!
Happy Christmas to all, and here's to yet more great underground exploring in the new year ;D
Topic: Cwmorthin on TV tonight
dwarrowdelf

Forum: North Wales   Posted: 23/12/2018 17:43:57   Subject: Cwmorthin on TV tonight
Just wonderful! many thanks;D
Topic: Cwmorthin on TV tonight
dwarrowdelf

Forum: North Wales   Posted: 19/12/2018 22:14:10   Subject: Cwmorthin on TV tonight
Yes, the little I saw was great. That chamber, I know so well, looked fantastic all lit up. The cathedral acoustics sound wonderful even in that little snippet of the soloist.

Would l
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 21/10/2018 09:35:44   Subject: Cwmorthin - geology question
Many thanks for all the interesting info, and will look up memoir when i have a moment. Will try and take a photo of the lumpy yellow fine grained rock, I didn't have chance to get a photo of the y
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 19/10/2018 19:40:45   Subject: Cwmorthin - geology question
Seen reference to the trap rock under the new vein as rhyolite, (caban magazine) but this may not necessarily mean that the hards between the old and back veins are the same material. Often wondere
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 19/10/2018 18:08:03   Subject: Cwmorthin - geology question
back to the layers of sandy yellow coloured stone. - Was indeed trying to acertain if it ran in line with the original bedding, or at a steeper angle, but didn't have time to work this out as I woul
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 19/10/2018 14:02:14   Subject: Cwmorthin - geology question
many thanks for your reply PeteK. Indeed reminded me of certain sandstones/limestones. but was however still thinking along the lines of volcanos, volcanic tuff and the like.

There are also
Topic: Cwmorthin - geology question
dwarrowdelf

Forum: North Wales   Posted: 19/10/2018 13:26:45   Subject: Cwmorthin - geology question
Was wondering if anyone knows what the lumpy yellow/tan rather nondescript looking rocks are, which are found scattered among the slate on the tips around Cwmorthin. They appear fine grained, even ce
Topic: Cwmorthin - little caban
dwarrowdelf

Forum: North Wales   Posted: 25/06/2018 20:09:59   Subject: Cwmorthin - little caban
Thanks for clarifying this "Rampage", so the way round is up the metal ladder from chamber 34?

Will probably have a look in October :)
Topic: Cwmorthin floor B Dam
dwarrowdelf

Forum: North Wales   Posted: 21/06/2018 14:00:07   Subject: Cwmorthin floor B Dam
The 2 short levels behind the dam will probably be in perfect condition, maybe some of the b level out east as well. Entering chambers will predictably be the problem.

(No, the B dam shoul
Topic: Cwmorthin floor B Dam
dwarrowdelf

Forum: North Wales   Posted: 20/06/2018 20:17:50   Subject: Cwmorthin floor B Dam
ah yes, just found the plan. Indeed the water had a greater area to pond in on the B floor horizon alone, than just chamber 1E. Immediately behind the dam itself, the plan shows the level to split in
Topic: Cwmorthin floor B Dam
dwarrowdelf

Forum: North Wales   Posted: 20/06/2018 18:48:30   Subject: Cwmorthin floor B Dam
Thanks for the info, PeteK. Intriguing to know that there's still unexplored ground so very close to the well trodden bits. Yes, I’ve looked into the chamber where the sawn ends where thrown down, but
Topic: Cwmorthin floor B Dam
dwarrowdelf

Forum: North Wales   Posted: 20/06/2018 13:57:12   Subject: Cwmorthin floor B Dam
Was wondering if anyone has finally managed to get down behind the dam on floor B. It either blocks a chamber on floor B, or a level into a chamber. I was wondering if it was likely to be the same cha
Topic: Cwmorthin lost world an observation
dwarrowdelf

Forum: North Wales   Posted: 06/06/2018 13:58:10   Subject: Cwmorthin lost world an observation
When I visited the "Lost Word" chambers on the Oakeley boundary last time, I noticed a trickle of water very obviously disappearing into the ground, just inside the cross-cut level which connects the
Topic: NAMHO Conference 2018
dwarrowdelf

Forum: Events   Posted: 02/06/2018 15:58:10   Subject: NAMHO Conference 2018
Would have loved to go to NAMHO, but sadly had no means of getting there :(

hope you all have good and informative time :)
Topic: Site outage - 31st May to 1st June
dwarrowdelf

Forum: Site Updates, Suggestions & Corrections   Posted: 01/06/2018 21:45:34   Subject: Site outage - 31st May to 1st June
thought it was what I'd just posted on the forum :blink::confused:

went back in to edit it and......:(
Topic: Cwmorthin - little caban
dwarrowdelf

Forum: North Wales   Posted: 31/05/2018 13:57:33   Subject: Cwmorthin - little caban
Found the plan - it’s called

“Lower Quarry western new vein workings on floor G to M”

and the chambers I looked into near the dam may be 24 and 25 floors F and G

Topic: Cwmorthin - little caban
dwarrowdelf

Forum: North Wales   Posted: 31/05/2018 08:38:20   Subject: Cwmorthin - little caban
Hi Rampage,

Thanks for the interesting info.

Yes, remember reading about what was possible when the water levels were down. -Rather unlikely to happen again.

Some tim
Topic: Cwmorthin - little caban
dwarrowdelf

Forum: North Wales   Posted: 29/05/2018 13:58:48   Subject: Cwmorthin - little caban
Took some friends into Cwmorthin a couple of weeks ago, and since we ended up in the 34 incline area, I thought I'd show them the little tucked away caban down on floor G, east of the incline. I was a
Topic: Milwr Tunnel & Olwyn Goch news
dwarrowdelf

Forum: North Wales   Posted: 11/01/2018 19:29:27   Subject: Milwr Tunnel & Olwyn Goch news
Many thanks for the info and references. Wondering if the water flow would in theory help push the air through to any extent?

Also really enjoyed the through trip video - great :thumbup:
Topic: Milwr Tunnel & Olwyn Goch news
dwarrowdelf

Forum: North Wales   Posted: 11/01/2018 13:58:19   Subject: Milwr Tunnel & Olwyn Goch news
Interesting - does anyone one know what's generating the radon in this particular case? :smartass:
Topic: Happy Christmas
dwarrowdelf

Forum: General Chat   Posted: 25/12/2017 17:39:52   Subject: Happy Christmas
A very happy Christmas to all, and a happy new year of mine exploring ! :thumbsup:
Topic: cross cultural uses of slate
dwarrowdelf

Forum: General Chat   Posted: 08/12/2017 13:56:01   Subject: cross cultural uses of slate
I thought it might be interesting to list some examples of the uses of slate in traditional cultures across the world both contemporary and ancient

Such uses include, slate roofing tiles us
Topic: Rhosydd Quarry Activity
dwarrowdelf

Forum: North Wales   Posted: 06/11/2017 20:57:53   Subject: Rhosydd Quarry Activity
I've only just started out on all the silliness - Was thrown into an underground pond with no bottom, or at any rate not a bottom I could find :o

To be more clear on the matter it was a ca
Topic: Thursday Nighters - 26th of October
dwarrowdelf

Forum: North Wales   Posted: 28/10/2017 09:43:12   Subject: Thursday Nighters - 26th of October
[quote="TheBogieman"]Curious to know how the 'plug' released itself, when it flipped and blocked the wormhole that night, it seemed very firmly wedged and resisted all efforts of crow barring. We have
Topic: One for the steam buffs
dwarrowdelf

Forum: General Chat   Posted: 19/10/2017 13:45:44   Subject: One for the steam buffs
Seem to remember from somewhere, that the access ways for the men to go to and from their workplace underground were known as "paths", in the slate quarries, presumably, they included "ladderways", "
Topic: sending private messages
dwarrowdelf

Forum: General Chat   Posted: 27/09/2017 23:01:56   Subject: sending private messages
Many thanks for the info. Wasn't quite sure how it worked :)
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