R. Joeckel, J. Korus, J. K. Turk, C. C. Arps, N. V. Arps, L. M. Howard
abstract:We describe unusual stream-reworked glacially transported rocks (erratics) from a locality 50 km east of the limit of all pre-Illinoian (pre-190 ka) Pleistocene glaciations in the central USA. Almost all these erratics consist of the igneous rock basalt, and of those, the vast majority have at least one flat, smooth face. Some have two or more such faces that meet at obtuse angles along one or more well-defined, straight edges. We attribute these features, as well as laminations, plumose marks, and other features, to columnar jointing in ancient lava flows and shallow intrusions. The most likely source of these erratics is the Lake Superior region. After the Laurentide Ice Sheet deposited them, the erratics experienced at least one episode of erosion and deposition in local stream sediments as the regional landscape evolved during the Middle Pleistocene to Holocene times. Before it found its way into Skull Creek, one of the basalt erratics was polished and reshaped as a ventifact by sediment-laden Pleistocene winds as it lay exposed on an ancient land surface. We also found four examples of omars: very distinctive erratics that eroded from outcrops in Hudson Bay and transported 2,100 km into the study area.
{"title":"Strange Stones of Skull Creek: Basalt Glacial Erratics and Omars in Eastern Nebraska","authors":"R. Joeckel, J. Korus, J. K. Turk, C. C. Arps, N. V. Arps, L. M. Howard","doi":"10.1353/gpr.2022.0000","DOIUrl":"https://doi.org/10.1353/gpr.2022.0000","url":null,"abstract":"abstract:We describe unusual stream-reworked glacially transported rocks (erratics) from a locality 50 km east of the limit of all pre-Illinoian (pre-190 ka) Pleistocene glaciations in the central USA. Almost all these erratics consist of the igneous rock basalt, and of those, the vast majority have at least one flat, smooth face. Some have two or more such faces that meet at obtuse angles along one or more well-defined, straight edges. We attribute these features, as well as laminations, plumose marks, and other features, to columnar jointing in ancient lava flows and shallow intrusions. The most likely source of these erratics is the Lake Superior region. After the Laurentide Ice Sheet deposited them, the erratics experienced at least one episode of erosion and deposition in local stream sediments as the regional landscape evolved during the Middle Pleistocene to Holocene times. Before it found its way into Skull Creek, one of the basalt erratics was polished and reshaped as a ventifact by sediment-laden Pleistocene winds as it lay exposed on an ancient land surface. We also found four examples of omars: very distinctive erratics that eroded from outcrops in Hudson Bay and transported 2,100 km into the study area.","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"32 1","pages":"1 - 20"},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45003333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Increasing the diversity of the science, technology, engineering, and mathematics (STEM) workforce is more than a noble goal. The richness of ideas and experiences from many cultural perspectives can help to move science forward. To help pave pathways to higher education and STEM careers, we have been working with schools and communities that serve Native American students. Part of this engagement has been to educate students about plants used by Native people of the Great Plains with the help of an ethnobotany booklet. A second approach has been using aquaponics, the coproduction of fish and plants in an ecosystem, to teach aspects of basic agriculture, fish anatomy, and water systems that may, at scale, help ease the food deserts in many Native American and underserved communities. Here, we describe our efforts to engage Native American students in STEM education by using ethnobotany and aquaponics to generate excitement for these fields.
{"title":"Using Ethnobotany and Aquaponics to Engage Native Youth in STEM.","authors":"Maurice Godfrey, Liliana Bronner, Kim Soper","doi":"10.1353/gpr.2022.0009","DOIUrl":"https://doi.org/10.1353/gpr.2022.0009","url":null,"abstract":"<p><p>Increasing the diversity of the science, technology, engineering, and mathematics (STEM) workforce is more than a noble goal. The richness of ideas and experiences from many cultural perspectives can help to move science forward. To help pave pathways to higher education and STEM careers, we have been working with schools and communities that serve Native American students. Part of this engagement has been to educate students about plants used by Native people of the Great Plains with the help of an ethnobotany booklet. A second approach has been using aquaponics, the coproduction of fish and plants in an ecosystem, to teach aspects of basic agriculture, fish anatomy, and water systems that may, at scale, help ease the food deserts in many Native American and underserved communities. Here, we describe our efforts to engage Native American students in STEM education by using ethnobotany and aquaponics to generate excitement for these fields.</p>","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"32 2","pages":"87-93"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10287167/pdf/nihms-1907768.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9766684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tracking Cumulative Cropland Expansion across the Great Plains: The Plowprint","authors":"Sarah K. Olimb, P. Lendrum","doi":"10.1353/GPR.2021.0006","DOIUrl":"https://doi.org/10.1353/GPR.2021.0006","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"39 1","pages":"111-114"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1353/GPR.2021.0006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Magic Bean: The Rise of Soy in America by Matthew Roth","authors":"E. J. Dunphy","doi":"10.1353/GPR.2021.0009","DOIUrl":"https://doi.org/10.1353/GPR.2021.0009","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1353/GPR.2021.0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rodeo: An Animal History by Susan Nance","authors":"Elyssa Ford","doi":"10.1353/gpr.2021.0030","DOIUrl":"https://doi.org/10.1353/gpr.2021.0030","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparing Health and Health Care from a Subnational Perspective: Saskatchewan and Nebraska","authors":"J. Blankenau","doi":"10.1353/gpr.2021.0025","DOIUrl":"https://doi.org/10.1353/gpr.2021.0025","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unfair Labor?: American Indians and the 1893 World's Columbian Exposition in Chicago by David R. M. Beck","authors":"J. Guard","doi":"10.1353/gpr.2021.0028","DOIUrl":"https://doi.org/10.1353/gpr.2021.0028","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Indigenous Food Sovereignty in the United States: Restoring Cultural Knowledge, Protecting Environments, and Regaining Health ed. by Devon A. Mihesuah and Elizabeth Hoover","authors":"L. McCune","doi":"10.1353/gpr.2021.0031","DOIUrl":"https://doi.org/10.1353/gpr.2021.0031","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"138 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kill, Camp, and Repeat: Return to the Lindenmeier Folsom Site, Colorado","authors":"Jason M. LaBelle, Kelton A. Meyer","doi":"10.1353/GPR.2021.0004","DOIUrl":"https://doi.org/10.1353/GPR.2021.0004","url":null,"abstract":"","PeriodicalId":35980,"journal":{"name":"Great Plains Research","volume":"31 1","pages":"75-96"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1353/GPR.2021.0004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66405655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：