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<\/a><\/a>Vi finner mange fantastiske fossile spor etter trilobitter her p\u00e5 Digermulen. Disse sporene gir oss et unikt glimt av dyrets liv \u00aben dag\u00bb i tidlig kambrium. De fineste fossilene fyller vi sekkene med og tar\u00a0 med tilbake til Troms\u00f8 Museum. Men noen av disse fossile sporene sitter s\u00e5 godt fast i fjellveggen (typisk at disse ogs\u00e5 er de st\u00f8rste og flotteste) at eneste m\u00e5te \u00e5 f\u00e5 de l\u00f8s er flere dagers arbeid med brekkjern, hammer og r\u00e5 paleontologisk muskelkraft.\u00a0 Og selv om vi skulle f\u00e5 blokken l\u00f8s er det en annen historie \u00e5 frakte den ned fra fjellhyllen nesten i toppen av den navnl\u00f8se store dalen som f\u00f8rer ned til campen v\u00e5r.\u00a0 S\u00e5 da m\u00e5 andre teknikker til.<\/p>\n
Silikon er et meget anvendelig materiale. Pensler man silikon p\u00e5 stein, legger den seg i alle kriker og kroker.\u00a0 N\u00e5r dette st\u00f8rkner kan en dra det av steinen. Dette gj\u00f8r at vi f\u00e5r et perfekt avtrykk av alle de spennende detaljene vi forskere trenger for \u00e5 kunne forst\u00e5 sporet dyret lagde.<\/p>\n
Og ikke minst, vi klarer \u00e5 b\u00e6re med oss avtrykket ned den lange veien tilbake til campen.<\/p>\n
Da denne dalen huser de de flotteste spor og fossiler her p\u00e5 Digermulen, studert av nyskjerrige forsker og avbildet i en rekke magasiner, synes vi det er p\u00e5 sin plass \u00e5 omd\u00f8pe dalen til Silicon Valley.<\/p>\n <\/p>\n <\/p>\n Fieldwork on Digermulen, summer of 2017<\/p>\n Silicone Valley and works of art<\/p>\n By Linn Novis.<\/p>\n Here we are again, grown ups and kids alike.<\/p>\n This year, eight palaeontologists, two recruits and one grown up on paternal leave. The youngest (14 months) is basically being fed fossils together with mother\u00b4s milk.<\/p>\n While the eight palaeontologists hike up the valleys every day searching and mapping fossils, the youngest find their treasures and produce works of art on the beach.<\/p>\n On Digermulen we find an amazing array of trace fossils produced by trilobites and organisms, giving us a unique window into animal life in the early Cambrian. The best examples we will stuff down into our backpacks and bring back to Troms\u00f8 University Museum. But, some of these traces are nearly impossible to bring back (typically the largest and best ones); the only way to break them from the rock is through days of had work with hammers, crowbars and raw palaeontological muscle power. Even then, when the traces are loose, transporting them down from the top of the valley to our camp by the beach is no simple feat. That\u00b4s when other techniques come in handy.<\/p>\n Silicone rubber is a most useful material used in palaeontological fieldwork, spreading it thinly on a rock surface produces a perfect copy of all the cracks and fossils visible. After setting, it can be<\/p>\n pulled off the rock in a thin layer, almost like a rock hide. This give us a perfect mould of the surface and allows us to study and understand the trace fossils made by the animals. And last but not least, a cast is substantially easier to carry down the valley. This valley is home to some of the finest fossils found from the early Cambrian, eagerly studied by us and published in magazines and journals, perhaps it should be called \u00abSilicone Valley\u00bb.<\/p>\n","protected":false},"excerpt":{"rendered":" Sm\u00e5 kunstverk og Silicon Valley Av Linn Novis. S\u00e5 var vi her, store og sm\u00e5. I \u00e5r, 8 paleontologer og 2 sm\u00e5 rekrutter og en i pappaperm. Den minste (14 mnd) f\u00e5r fossiler bokstavelig talt inn med morsmelka. Mens de 8 store g\u00e5r innover fjellet hver dag og leter etter fossiler s\u00e5 finner de minste … Continue reading Feltarbeid p\u00e5 Digermulen sommer 2017<\/span> <\/a><\/a><\/a>
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