Chris White<p>When (micro)continents collide</p><p><a href="https://sciencemastodon.com/tags/Silurian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Silurian</span></a> or <a href="https://sciencemastodon.com/tags/Devonian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Devonian</span></a> <a href="https://sciencemastodon.com/tags/metasediments" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>metasediments</span></a> / pellitic <a href="https://sciencemastodon.com/tags/schists" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>schists</span></a> / sulfidic schists <br>North Pack Monadnock, south central New Hampshire USA</p><p>Intensely folded rocks</p><p>Merrimack / Central Maine Trough smashed as <a href="https://sciencemastodon.com/tags/Avalonia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Avalonia</span></a> joined Laurasia to start assembling Pangea in the <a href="https://sciencemastodon.com/tags/Acadian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Acadian</span></a> <a href="https://sciencemastodon.com/tags/Orogeny" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Orogeny</span></a>, about 375 million years ago.</p><p>Knowing some <a href="https://sciencemastodon.com/tags/geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geology</span></a> makes hiking more fun!</p><p>Normally proportioned geochemist forelimb for scale<br>My <a href="https://sciencemastodon.com/tags/photo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>photo</span></a><br>Fujifilm X-H1 16 mm f/1.4 @ f/4 ⅛ s ISO 200 (IBIS)</p>