💧🌏 Greg Cocks<p>Earth May Have Had A Ring System 466 Million Years Ago<br>--<br><a href="https://phys.org/news/2024-09-earth-million-years.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2024-09-earth-mi</span><span class="invisible">llion-years.html</span></a> &lt;-- shared technical article<br>--<br><a href="https://doi.org/10.1016/j.epsl.2024.118991" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.1016/j.epsl.2024.11</span><span class="invisible">8991</span></a> &lt;-- shared paper<br>--<br>“HIGHLIGHTS:<br>• Earth may have had a ring during the middle Ordovician, from ca. 466 Ma.<br> • Breakup of an asteroid passing within Earth's Roche limit likely formed the ring.<br> • Among several features preserved is a near-equatorial band of impact craters.<br> • Shading of Earth by the ring may have triggered a global icehouse period…”<br>--<br><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mapping</span></a> <a href="https://techhub.social/tags/model" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>model</span></a> <a href="https://techhub.social/tags/modeling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>modeling</span></a> <a href="https://techhub.social/tags/geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geology</span></a> <a href="https://techhub.social/tags/structuralgeology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>structuralgeology</span></a> <a href="https://techhub.social/tags/planetarygeology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planetarygeology</span></a> <a href="https://techhub.social/tags/rings" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rings</span></a> <a href="https://techhub.social/tags/climatechange" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>climatechange</span></a> <a href="https://techhub.social/tags/paleoclimate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>paleoclimate</span></a> <a href="https://techhub.social/tags/Ordovician" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ordovician</span></a> <a href="https://techhub.social/tags/asteroid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>asteroid</span></a> <a href="https://techhub.social/tags/rochelimit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rochelimit</span></a> <a href="https://techhub.social/tags/craters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>craters</span></a> <a href="https://techhub.social/tags/impactcrater" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>impactcrater</span></a> <a href="https://techhub.social/tags/crater" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>crater</span></a> <a href="https://techhub.social/tags/icehouse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>icehouse</span></a> <a href="https://techhub.social/tags/meteorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>meteorite</span></a> <a href="https://techhub.social/tags/platetectonics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>platetectonics</span></a> <a href="https://techhub.social/tags/HirnantianIcehouse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HirnantianIcehouse</span></a></p>