{"id":781,"date":"2021-09-16T19:30:32","date_gmt":"2021-09-16T19:30:32","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/accphysicalgeography\/chapter\/summary-physical-geology-2nd-edition-18\/"},"modified":"2026-05-21T15:55:38","modified_gmt":"2026-05-21T15:55:38","slug":"summary-physical-geology-2nd-edition-18","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/chapter\/summary-physical-geology-2nd-edition-18\/","title":{"raw":"Summary &#8212; Physical Geology &#8211; 2nd Edition","rendered":"Summary &#8212; Physical Geology &#8211; 2nd Edition"},"content":{"raw":"<div>\r\n<div>\r\n\r\n<img class=\"wp-image-780\" src=\"https:\/\/pressbooks.ccconline.org\/physicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity.jpg\" alt=\"\" width=\"500\" height=\"338\" \/>\r\n<div id=\"caption-attachment-832\" class=\"wp-caption-text\">Figure A<\/div>\r\n<\/div>\r\n<ul>\r\n \t<li>Explain why carbonate sediments are absent from the deepest parts of the oceans.<\/li>\r\n \t<li>What is the source of the carbon that is present in sea-floor methane hydrate deposits?<\/li>\r\n \t<li>Where are the saltiest parts of the oceans? Why?<\/li>\r\n \t<li>Explain why sea-surface water with the greatest density is found in the north Atlantic, as shown on Figure A.<\/li>\r\n \t<li>What type of ocean currents result from the relatively dense water in the north Atlantic?<\/li>\r\n \t<li>How do the open-ocean currents affect the overall climate patterns on Earth?<\/li>\r\n<\/ul>\r\n<\/div>\r\n<h3>Media Attributions<\/h3>\r\n<ul>\r\n \t<li>Figure A: \u201c<a href=\"https:\/\/web.archive.org\/web\/20160817063410\/https:\/\/upload.wikimedia.org\/wikipedia\/en\/3\/31\/SeaSurfaceDensity.jpg\">Sea Surface Density<\/a>.\u201d by <a href=\"http:\/\/svs.gsfc.nasa.gov\/3652\">NASA<\/a>. Adapted by Steven Earle. Public domain.<\/li>\r\n<\/ul>\r\n<!-- pb_fixme -->","rendered":"<div>\n<div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-780\" src=\"https:\/\/pressbooks.ccconline.org\/physicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity.jpg\" alt=\"\" width=\"500\" height=\"338\" srcset=\"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity.jpg 1024w, https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity-300x202.jpg 300w, https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity-768x518.jpg 768w, https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity-65x44.jpg 65w, https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity-225x152.jpg 225w, https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-content\/uploads\/sites\/48\/2021\/09\/SeaSurfaceDensity-350x236.jpg 350w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<div id=\"caption-attachment-832\" class=\"wp-caption-text\">Figure A<\/div>\n<\/div>\n<ul>\n<li>Explain why carbonate sediments are absent from the deepest parts of the oceans.<\/li>\n<li>What is the source of the carbon that is present in sea-floor methane hydrate deposits?<\/li>\n<li>Where are the saltiest parts of the oceans? Why?<\/li>\n<li>Explain why sea-surface water with the greatest density is found in the north Atlantic, as shown on Figure A.<\/li>\n<li>What type of ocean currents result from the relatively dense water in the north Atlantic?<\/li>\n<li>How do the open-ocean currents affect the overall climate patterns on Earth?<\/li>\n<\/ul>\n<\/div>\n<h3>Media Attributions<\/h3>\n<ul>\n<li>Figure A: \u201c<a href=\"https:\/\/web.archive.org\/web\/20160817063410\/https:\/\/upload.wikimedia.org\/wikipedia\/en\/3\/31\/SeaSurfaceDensity.jpg\">Sea Surface Density<\/a>.\u201d by <a href=\"http:\/\/svs.gsfc.nasa.gov\/3652\">NASA<\/a>. Adapted by Steven Earle. Public domain.<\/li>\n<\/ul>\n<p><!-- pb_fixme --><\/p>\n","protected":false},"author":32,"menu_order":131,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-781","chapter","type-chapter","status-publish","hentry"],"part":17,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapters\/781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/wp\/v2\/users\/32"}],"version-history":[{"count":2,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapters\/781\/revisions"}],"predecessor-version":[{"id":1398,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapters\/781\/revisions\/1398"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/parts\/17"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapters\/781\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/wp\/v2\/media?parent=781"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/pressbooks\/v2\/chapter-type?post=781"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/wp\/v2\/contributor?post=781"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/accphysicalgeology\/wp-json\/wp\/v2\/license?post=781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}