Talk:Caves of the Tullybrack and Belmore hills

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Geological time[edit]

I started to revise this article but then realised that there's so much to change re the references to rock strata. The Carboniferous Limestone was deposited during the Carboniferous period. This period is subdivided in various confusing ways - see main article on the period to gain an understanding - the way in which it is subdivided has changed many times over the years.

Ireland's caves have formed largely during the period which we now live in - the Quaternary. This is another interval of geological time whose agreed start dates have changed considerably and whose subdivisions have changed on several occasions - see main article again. The Holocene is the current subdivsion in which we live, it follows on from the Pleistocene - both are referred to as epochs. Perhaps someone may get around to clearing up the confusion in the article before I do. cheers Geopersona (talk) 11:29, 21 November 2010 (UTC)[reply]

I fact I have made a few changes to rationalise the layout by providing a brief pre-amble which explains that the limestones and associated lithologies originate in the Asbian substage of the Visean stage of the Carboniferous period. There will be various of the cave formations which date from the Holocene (and presumably Pleistocene) and indeed the cave passage development, sinkhole and doline formation will have taken place during the Quaternary. Further attention is required to the text in various sections of this article before it makes geological sense. The carn Limestone could wo with being referenced within this sequence. It is not clear to me what is intended by use of the term/s 'substrata/substratum' though I suspect it is meant to refer to Quaternary age cave deposits. Geopersona (talk) 17:25, 21 November 2010 (UTC)[reply]

Hi Geopersona, thanks for your input; you're right, the list does tend to be quite repetitive, and your changes help this. It needed the touch of someone who understands geology a little better to attempt sorting it out :-) Having the main descriptive "blurb" in the lead and then highlighting within its relevant section each feature which does not fall into the same category, is certainly the way forward. I wouldn't be happy tinkering with it myself for fear of writing something entirely false! Fattonyni (talk) 21:33, 21 November 2010 (UTC)[reply]

Hi Fattonyni - I hesitated to make the changes, not knowing the area specifically though the same general geological principles apply across just about all the karst areas of Britain and Ireland. More could yet be done to streamline the article without losing the detail which you've sourced but enough for now. cheers Geopersona (talk) 20:21, 23 November 2010 (UTC)[reply]

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