{"id":194,"date":"2015-10-14T14:30:08","date_gmt":"2015-10-14T18:30:08","guid":{"rendered":"http:\/\/commons.trincoll.edu\/cgeiss\/?page_id=194"},"modified":"2019-04-15T13:55:22","modified_gmt":"2019-04-15T17:55:22","slug":"research-otsego-lake-ny","status":"publish","type":"page","link":"https:\/\/commons.trincoll.edu\/cgeiss\/research\/research-otsego-lake-ny\/","title":{"rendered":"Research at Otsego Lake, New York"},"content":{"rendered":"<p>In collaboration with my old friend and colleague Dr. Les Hasbargen (SUNY Oneonta) I have been collecting samples and data from Otsego lake in Upstate New York. After two field seasons we have collected several sediment cores and have conducted a dozen ground-penetrating-radar (GPR) surveys. Some of our cores are dated, and the dateable sediment record covers approximately 9,000 years. Our cores consist of carbonate-rich (marl) sediments with plenty of shells and some plant fossils which had been deposited on top of clastic, partially varved silt and clay.<\/p>\n<figure id=\"attachment_195\" aria-describedby=\"caption-attachment-195\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/commons.trincoll.edu\/cgeiss\/files\/2015\/10\/OTS-15-1-composite-GPR-profile.jpg\"><img loading=\"lazy\" class=\"size-large wp-image-195\" src=\"http:\/\/commons.trincoll.edu\/cgeiss\/files\/2015\/10\/OTS-15-1-composite-GPR-profile-1024x357.jpg\" alt=\"GPR profile extending from the shoreline (left) approximately 250 m into the lake. The first reflector is the ice surface, the next, curved reflector represents the lake bottom, while lower reflectors represent various changes in sediment properties.\" width=\"1024\" height=\"357\" srcset=\"https:\/\/commons.trincoll.edu\/cgeiss\/files\/2015\/10\/OTS-15-1-composite-GPR-profile-1024x357.jpg 1024w, https:\/\/commons.trincoll.edu\/cgeiss\/files\/2015\/10\/OTS-15-1-composite-GPR-profile-300x105.jpg 300w, https:\/\/commons.trincoll.edu\/cgeiss\/files\/2015\/10\/OTS-15-1-composite-GPR-profile.jpg 1251w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/a><figcaption id=\"caption-attachment-195\" class=\"wp-caption-text\">GPR profile extending from the shoreline (left) approximately 230 m into the lake. The first reflector is the ice surface, the next, curved reflector represents the lake bottom, while lower reflectors represent various changes in sediment properties.<\/figcaption><\/figure>\n<p>We are currently characterizing the magnetic properties of the weakly magnetized marl section. Concentration-dependent susceptibility and IRM correlate well with the abundance of clastic material (as quantified through X-ray diffraction, XRD), while grain-size dependent parameters, such as frequency-dependent susceptibility \u03c7 <sub> FD <\/sub>% and ARM\/IRM track the abundance of (likely) biogenic magnetite and may be a proxy of biological productivity through time.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In collaboration with my old friend and colleague Dr. Les Hasbargen (SUNY Oneonta) I have been collecting samples and data from Otsego lake in Upstate New York. After two field seasons we have collected several sediment cores and have conducted a dozen ground-penetrating-radar (GPR) surveys. Some of our cores are dated, and the dateable sediment &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/commons.trincoll.edu\/cgeiss\/research\/research-otsego-lake-ny\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Research at Otsego Lake, New York&#8221;<\/span><\/a><\/p>\n","protected":false},"author":573,"featured_media":0,"parent":10,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0},"_links":{"self":[{"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/pages\/194"}],"collection":[{"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/users\/573"}],"replies":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/comments?post=194"}],"version-history":[{"count":3,"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/pages\/194\/revisions"}],"predecessor-version":[{"id":203,"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/pages\/194\/revisions\/203"}],"up":[{"embeddable":true,"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/pages\/10"}],"wp:attachment":[{"href":"https:\/\/commons.trincoll.edu\/cgeiss\/wp-json\/wp\/v2\/media?parent=194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}