joshuajbelanger Posted September 3, 2017 Share Posted September 3, 2017 In one very particular site of mine on the peace river, I noticed that some of the fossils have this coloration. Here is a pretty good example on a mammoth tooth I've found. It seems that the fossils vary, but every now and again I get this mineral on the fossils. What is this? What causes it? I'm sure it's probably pretty common and I really should know this, as I'm studying geology at the University of Florida. But, hey, you guys have a collective fossil and mineral knowledge of an ancient god. Put this mystery to bed for me please. Link to comment Share on other sites More sharing options...
joshuajbelanger Posted September 3, 2017 Author Share Posted September 3, 2017 Link to comment Share on other sites More sharing options...
Ludwigia Posted September 3, 2017 Share Posted September 3, 2017 Manganese perhaps? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Miocene_Mason Posted September 3, 2017 Share Posted September 3, 2017 I would guess ochre (although I can be sure as a number of oxides look kind of like this), here's a picture of the purple color it creates running down a mountainside, it's a type of iron oxide. Probably seeped in with groundwater, or you can fantasize that it was painted on by human “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Scylla Posted September 3, 2017 Share Posted September 3, 2017 Is there a feeder stream running past an autobody shop nearby? Link to comment Share on other sites More sharing options...
GeschWhat Posted September 3, 2017 Share Posted September 3, 2017 I've been curious about that as well. I know there is a coprolite from Florida in the Poozeum that also has that colorization. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
doushantuo Posted September 3, 2017 Share Posted September 3, 2017 I am starting to believe that weathered sheet silicates might prove a good habitat for iron-fixating bacteria . get out your Munsell,please. Multiply reworked paleosols do have a tendency toward red colouration Or someone overdid "painting the town red". Hope your study proceeds as planned,Josh Link to comment Share on other sites More sharing options...
abyssunder Posted September 3, 2017 Share Posted September 3, 2017 Maybe it contains Potassium permanganate which was dissolved in water and gave that color. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 3, 2017 Share Posted September 3, 2017 This color is a residue of a red alga which grows in Florida streams. It is most abundant in spring-fed streams like the Santa Fe River. It grows on rocks as well as bones. I usually remove it from fossils during preparation. In my experience it is uncommon in the Peace River. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
joshuajbelanger Posted September 3, 2017 Author Share Posted September 3, 2017 Very interesting. Link to comment Share on other sites More sharing options...
doushantuo Posted September 4, 2017 Share Posted September 4, 2017 edited The alga(singular) might be Hildenbrandia Some red algae are harmful,Btw Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 4, 2017 Share Posted September 4, 2017 Not every collector knows about this algal growth, so wow your friends at the next Tampa show. If you've dived the Santa Fe, you've seen lots of these algae. They appear like a burgundy-color splotch and spreads on exposed surfaces. The growth turns magenta when dry, and the residue seems quite adherent. I just made these images. It's easy to see which tool came from a spring-fed stream. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 4, 2017 Share Posted September 4, 2017 May be Hildenbrandia rivularis (Liebman, 1839), but I don't know for certain . . . A freshwater algae with a well-matching set of descriptors. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
joshuajbelanger Posted September 5, 2017 Author Share Posted September 5, 2017 It's interesting, I've only ever seen this coloration in a very specific spot on the peace river. Wonder why that is? Is there any danger to this algae? I actually like the color it gives to some of these fossils, especially after a butvar coating. It's a very turnulent spot as well. Lots of rapids, I'm reading that it prefers still water. The plot thickens. Hey, maybe there's a thesis in here some where lol!!! Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 5, 2017 Share Posted September 5, 2017 Tell us where you read that this alga "prefers still water." http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 Stoyneva et al(2005) One of the problems concerning knowledge in combined occurrence of Hildenbrandia and Heribaudiella is the questionable taxonomy of some of their species according to their considerable morphological variability (WEHR & STEIN 1985, SHEATH et al. 1993, STOYNEVA et al. 2002). Also different and controversially discussed are the ecological requirements of Hildenbrandia and Heribaudiella (WEHR & STEIN 1985, SHEATH 2003, WEHR 2003), which could be one of the possible explanations of the few data on their combined occurrence. While Hildenbrandia rivularis is mainly known from well-aerated alkaline clear water habitats (see literature in STOYNEVA et al. 2002), according to WEHR & STEIN (1985) and WEHR (2003) Heribaudiella fluviatilis was found in much more broad range of ecological conditions. Link to comment Share on other sites More sharing options...
Harry Pristis Posted September 5, 2017 Share Posted September 5, 2017 1 hour ago, doushantuo said: Stoyneva et al(2005) One of the problems concerning knowledge in combined occurrence of Hildenbrandia and Heribaudiella is the questionable taxonomy of some of their species according to their considerable morphological variability (WEHR & STEIN 1985, SHEATH et al. 1993, STOYNEVA et al. 2002). Also different and controversially discussed are the ecological requirements of Hildenbrandia and Heribaudiella (WEHR & STEIN 1985, SHEATH 2003, WEHR 2003), which could be one of the possible explanations of the few data on their combined occurrence. While Hildenbrandia rivularis is mainly known from well-aerated alkaline clear water habitats (see literature in STOYNEVA et al. 2002), according to WEHR & STEIN (1985) and WEHR (2003) Heribaudiella fluviatilis was found in much more broad range of ecological conditions. Thank you, Doushantuo. Lest there be any confusion, Heribaudiella fluviatilis doesn't range into the Southeast USA. It is a brown alga, and not a candidate to be the crimson/magenta alga under discussion. The nugget you must have been offering (highlighted in the quote) is the comment on the habitat of Hildenbrandia. This comment fits well the relatively-swift water of the Santa Fe River (and, it seems, some riffles in the Peace River). The earlier suggestion that this alga "prefers still water" is probably baseless. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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