Timeline for What sort of white rock with lots of small holes is this?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 10, 2014 at 8:46 | comment | added | user2766 | There is a fair amount of if's in that: but if it's a coral and that coral is from the Carboniferous period, that period ended 300,000,000 years ago. So there is a fair chance that,yes it is 300,000,000 years old. | |
| Apr 10, 2014 at 8:42 | comment | added | user3127 | @Liam did you mean that the rock is 300,000,000 years old? Wow! | |
| Apr 9, 2014 at 15:22 | history | edited | user2766 | CC BY-SA 3.0 |
added 40 characters in body
|
| Apr 9, 2014 at 15:05 | comment | added | Brian S | @Liam, "±" is the "plus or minus" symbol. "298.9 ± 0.15" means "298.9 - 0.15 or 298.9 + 0.15", though in most usages it means "anywhere from 298.9 - 0.15 to 298.9 + 0.15" -- it's giving an approximate range on the possible values. | |
| Apr 9, 2014 at 15:03 | comment | added | user2766 | @Bo5ao, yes if you want. | |
| Apr 9, 2014 at 15:02 | comment | added | user2766 | What about the + bit? @BrianS. I tried to google an answer but it's not something that is easy to search for! | |
| Apr 9, 2014 at 15:00 | comment | added | user3127 | Thank you for all your replies guys. I was just wondering should I leave the thread open to see if anyone else has something to say about it? In either case I have learned a bit more about this little gem. I will also get in touch with a friend of mine whom I believe works in the field of geology and will update you guys when I find out what it is | |
| Apr 9, 2014 at 14:58 | comment | added | Brian S | @Liam, Are you referring to the "298.9 ± 0.15 Ma" bit? Ma is short for Megaannum in this context, which is 1 million years. | |
| Apr 9, 2014 at 14:56 | comment | added | Brian S | @Bo5ao, There are several processes which result in fossils; some result in rocks while other don't (technically). Without knowing what kind of fossil it is, it's impossible to say whether it counts as a rock! | |
| Apr 9, 2014 at 14:21 | comment | added | user2766 | I don't know. I would guess it would be simply called "a fossil". I am not a geologist, though I do have geologist friends (I'll ask them). I've added details from Wikipedia on the period, I don't understand the age notation they're using, anyone? | |
| Apr 9, 2014 at 14:20 | history | edited | user2766 | CC BY-SA 3.0 |
added 311 characters in body
|
| Apr 9, 2014 at 14:12 | comment | added | user3127 | forgot to ask, does it have a proper (scientific) name? or is it simply called "a fossilised coral" ? Would it be possible to estimate its age? (I guess this has to be done by taking it to an expert in the field)? | |
| Apr 9, 2014 at 13:15 | history | answered | user2766 | CC BY-SA 3.0 |