حدث لاو

حدث لاو (بالإنجليزية: Lau)‏، آخر حدث من الثلاثة أحداث للانقراضات الطفيفة نسبيًا (إيرفكن ومولدي ولاو) خلال العصر السيلوري. كان له تأثير كبير على مخروطيات الأسنان، ولكن بالكاد أثر على الجرابتوليت. وقد تزامن مع نقطة عالمية منخفضة في مستوى سطح البحر، وتبعه عن كثب رحلة في النظائر الجيوكيميائية في وقت متأخر من مرحلة اللودفوردي الحيوانية وتغيير في نظام الترسب.

مراجع

  1. ^ ا ب Jeppsson, L.؛ Calner, M. (2007). "The Silurian Mulde Event and a scenario for secundo—secundo events". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. ج. 93 ع. 02: 135–154. DOI:10.1017/S0263593300000377.
  2. ^ ا ب Munnecke, A.؛ Samtleben, C.؛ Bickert, T. (2003). "The Ireviken Event in the lower Silurian of Gotland, Sweden-relation to similar Palaeozoic and Proterozoic events". Palaeogeography, Palaeoclimatology, Palaeoecology. ج. 195 ع. 1: 99–124. DOI:10.1016/S0031-0182(03)00304-3.
  3. ^ Gradstein, F. M.، المحرر (2012). The Geologic Time Scale 2012. Elsevier Science Ltd. ص. 504. ISBN:978-0444594259.
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