https://www.amherst.edu/ en https://www.amherst.edu/museums/naturalhistory/education/community-connections/amherst-college-wildlife-sanctuary/205---lake-hitchcock-deposits/node/802981 <span class="field field--name-title field--type-string field--label-hidden">Lake and Glacial Deposits</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/119075" class="username">Alfred J. Venne</a></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2021-06-25T15:00:35-04:00" title="Friday, June 25, 2021, at 3:00 PM" class="datetime">Friday, 6/25/2021, at 3:00 PM</time> </span> <div class="field field--name-body field--type-text-with-summary field--label-hidden field__item"><p><span>Near South East Street much of the wooded Sanctuary property floods in spring. The trail loop in this section may be impassable for parts of the year, especially after heavy rains.</span></p> <p><span>This low-lying area was the floor of Lake Hitchcock, a large glacial lake that formed when the ice sheets retreated north from Amherst approximately 15,000 years ago. </span><span>When the ice receded, a polished, scratched and grooved bedrock surface covered by a thin layer of unsorted sediment (known as glacial till) was left.&nbsp;</span></p> <p><span>Under glacial Lake Hitchcock, </span><span>fine clay accumulated, making for poor drainage today. </span><em><span>The Connecticut Valley 15,000 years ago</span></em><span> exhibit at the Beneski Museum of Natural History has a reconstruction of the Amherst region as it appeared when Lake Hitchcock was at its greatest extent.&nbsp;</span></p></div> Fri, 25 Jun 2021 19:00:35 +0000 avenne 802981 at https://www.amherst.edu https://www.amherst.edu/museums/naturalhistory/education/community-connections/amherst-college-wildlife-sanctuary/205---lake-hitchcock-deposits/node/802983 <span class="field field--name-title field--type-string field--label-hidden">Did you know?</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/119075" class="username">Alfred J. Venne</a></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2021-06-25T15:07:12-04:00" title="Friday, June 25, 2021, at 3:07 PM" class="datetime">Friday, 6/25/2021, at 3:07 PM</time> </span> <div class="field field--name-field-display-mode-cg field--type-list-string field--label-above"> <div class="field__label">Display Mode</div> <div class="field__item">Featured Set Gallery</div> </div> <div class="field field--name-field-cg-updates field--type-entity-reference-revisions field--label-above"> <div class="field__label">Updates</div> <div class="field__items"> <div class="field__item"> <div class="paragraph paragraph--type--cg-updates paragraph--view-mode--default"> <div class="field field--name-field-cg-updates-featured field--type-boolean field--label-hidden field__item">Off</div> <div class="field field--name-field-cg-updates-date field--type-datetime field--label-hidden field__item"><time datetime="2021-06-25T12:00:00Z" class="datetime">Friday, 6/25/2021, at 12:00 PM</time> </div> </div> </div> </div> </div> <div class="field field--name-field-cg-courses field--type-entity-reference-revisions field--label-above"> <div class="field__label">Courses</div> <div class="field__items"> <div class="field__item"> <div class="paragraph paragraph--type--cg-courses paragraph--view-mode--default"> <div class="field field--name-field-cg-courses-discipline field--type-list-string field--label-above"> <div class="field__label">Discipline</div> <div class="field__item">Arts</div> </div> </div> </div> </div> </div> <div class="field field--name-field-cg-features field--type-entity-reference-revisions field--label-above"> <div class="field__label">Featured Items</div> <div class="field__items"> <div class="field__item"> <div class="paragraph paragraph--type--cg-features paragraph--view-mode--default"> <div class="field field--name-field-generic-media field--type-entity-reference field--label-above"> <div class="field__label">Image</div> <div class="field__item"><a href="/media/797/edit" hreflang="en">till.jpg</a></div> </div> <div class="field field--name-field-cg-features-title field--type-link field--label-above"> <div class="field__label">Title</div> <div class="field__item"><span>Glacial Till at the Book and Plow Farm</span></div> </div> <div class="field field--name-field-cg-features-description field--type-string-long field--label-above"> <div class="field__label">Description</div> <div class="field__item">Glacial till is super common in the area surrounding Amherst College. When farmers cultivate the land, they often come across big clasts that get in the way of planting. If you drive past any local farms, you might notice rows of rocks or even stone walls created by farmers as they carried inconvenient rocks to the edge of their properties. </div> </div> </div> </div> </div> </div> Fri, 25 Jun 2021 19:07:12 +0000 avenne 802983 at https://www.amherst.edu