66,348 Posts

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mr_gneiss_guy A ripple mark that was lined with a course grained sandstone, it was later Infilled with a very fine gained mudstone and then covered over with more sand to form a long sandy tube full of mudstone. The mudstone was washed out when the long ripple fractured, leaving a hollow sandstone tube. One end of this tube is closed as it is the end of the ripple, perhaps the ripple mark was disrupted by a larger rock or some form of obstruction #geology #geologist #rock #ripple #ripplemark #sandstone #mudstone #infilled #isleofwight #iow #specimen 9h
  •   microgirl3 So cool. I love that you interpreted the story of that rock for everyone. The history of the earth is written in the rocks and the key to the past lies in the present. Made my night. Thanks. 5h

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mr_gneiss_guy Another mudstone, although the bivalves preserved in this piece are very small! <1mm Another delicate specimen to look after - found in the Isle of Wight #mudstone #fossil #fossils #shell #shells #specimen #sandstone #rock #iow #isleofwight #bivalves #bivalve 10h

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mr_gneiss_guy A lovely piece of pyritised wood found on the Isle Of Wight, this is thought to be some kind of pine species. The pyrite crystals are very abundant and are great to see. Pyritisation occurs when water rich in iron based minerals flow through a material, in this case wood, and the minerals crystallise out of solution to form pyrite crystals. #geology #geologist #preservation #preserved #pyrite #iron #iow #isleofwight #crystal #crystals #wood #fossil #fossils #rock #pyritisedwood #pine 11h

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rossnegus The Island today. Aside from the ridiculous amount of roadworks and road closures, its a beautiful place. #isleofwight #iow #roadworks 11h

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mr_gneiss_guy A ripple mark that was lined with a course grained sandstone, it was later Infilled with a very fine gained mudstone and then covered over with more sand to form a long sandy tube full of mudstone. The mudstone was washed out when the long ripple fractured, leaving a hollow sandstone tube. One end of this tube is closed as it is the end of the ripple, perhaps the ripple mark was disrupted by a larger rock or some form of obstruction #geology #geologist #rock #ripple #ripplemark #sandstone #mudstone #infilled #isleofwight #iow #specimen 11h
  •   woldy630 Interesting 10h
  •   mr_gneiss_guy @woldy630 thanks, this was a new concept for me today but was of great interest to me also 10h
  •   woldy630 Were the ripples you describe caused by a known sedimentation event ?? Or in some known flood plane strata 9h
  •   mr_gneiss_guy @woldy630 well is was a region of shallow marine conditions and I'm fairly sure that this is formed in a sort of flood plain/delta 9h

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mr_gneiss_guy A ripple mark that was lined with a course grained sandstone, it was later Infilled with a very fine gained mudstone and then covered over with more sand to form a long sandy tube full of mudstone. The mudstone was washed out when the long ripple fractured, leaving a hollow sandstone tube. One end of this tune is closed as it is the end of the ripple, perhaps the ripple mark was disrupted by a larger rock or some form of obstruction #geology #geologist #rock #ripple #ripplemark #sandstone #mudstone #infilled #isleofwight #iow #specimen 11h

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mr_gneiss_guy Death assemblage of epifaunal bivalves in mudstone from the Isle Of Wight. The layer of mudstone which houses the fragmented and dis-articulated shells was deposited on top of an Infilled ripple mark, as seen in a later picture, a very delicate find but a lovely one at that. #geology #bivalves #shells #fossil #fossils #mudstone #isleofwight #iow #geologist #preservation #ripple #ripplemark #epifaunal #shell #preserved #dinosaur #Jurassic 12h

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hannahsans0m Cya in January Cardiff! #cardiff #uni #home #train #island #iow 12h

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alicesimmonds Isle of Wight Polaroid ️🚣 @opheliatarver #tb #iow 17h

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hughesluke Would love to go back here #iow 17h

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bennettarabella This vs. library
#IOW
18h

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mr_gneiss_guy Off fossil hunting on the Isle Of Wight #geology #fossils #iow #isleofwight 21h

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bundamental Gingerbread bundt cake - something a bit lighter for this time of year, but still full of festive flavour #ginger #gingerbread #spice #cake #baking #iow #isleofwight 23h

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1d ganttgk
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ganttgk รักที่ฉันให้ไป เชิญใช้ตามสบาย #iow 1d

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