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German Mineralogical Society 德国矿物学学会
2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.111
{"title":"German Mineralogical Society","authors":"","doi":"10.2138/gselements.19.2.111","DOIUrl":"https://doi.org/10.2138/gselements.19.2.111","url":null,"abstract":"","PeriodicalId":11643,"journal":{"name":"Elements","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135673491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Paleolakes of Eastern Africa: Zeolites, Clay Minerals, and Climate 东非古湖泊:沸石、粘土矿物和气候
IF 4.5 2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.96
L. McHenry, Verena Foerster, D. Gebregiorgis
{"title":"Paleolakes of Eastern Africa: Zeolites, Clay Minerals, and Climate","authors":"L. McHenry, Verena Foerster, D. Gebregiorgis","doi":"10.2138/gselements.19.2.96","DOIUrl":"https://doi.org/10.2138/gselements.19.2.96","url":null,"abstract":"The eastern branch of the East African Rift System hosts many shallow modern lakes and paleolakes, which can be sensitive recorders of changing climate conditions (complicated by tectonics) during the past few million years. However, many of such lakes are saline–alkaline (salty and high pH), and these conditions do not easily preserve pollen and other biologically derived paleoclimate indicators. Fortunately, some preserved minerals that formed in these extreme environments reflect subtle shifts in lake water chemistry (controlled by changes in climate conditions) and therefore provide a continuous record of local and regional climate change. We present two different mineral proxies (zeolites and clays) from two different paleolake basins (Olduvai Gorge, Tanzania, and Chew Bahir, Ethiopia) as examples.","PeriodicalId":11643,"journal":{"name":"Elements","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43562865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Dawn of Humanity: What Can Paleoanthropologists and Geoscientists Learn from One Another? 人类的黎明:古人类学家和地球科学家可以互相学习什么?
IF 4.5 2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.75
C. Musiba, A. Gidna, M. Alene
{"title":"The Dawn of Humanity: What Can Paleoanthropologists and Geoscientists Learn from One Another?","authors":"C. Musiba, A. Gidna, M. Alene","doi":"10.2138/gselements.19.2.75","DOIUrl":"https://doi.org/10.2138/gselements.19.2.75","url":null,"abstract":"Establishing a scientific narrative of human origins requires a better understanding of the geological processes that facilitated the fossilization and recovery of hominins and associated fauna that inform us about our human ancestors’ past environments. Paleoanthropologists rely on geologists, particularly volcanologists, geochemists, sedimentologists, and geochronologists, to help them tease out the depositional and preservation history of fossils. Here, we provide an overview of how geology has contributed to major paleoanthropological discoveries from select Plio–Pleistocene localities in eastern Africa, Tanzania (Oldupai* (Olduvai) Gorge and Laetoli), Kenya (Allia Bay, Kanapoi, and Koobi Fora), and Ethiopia (Hadar, Woranso-Mille, and Dikika) over the past 75 years of research.","PeriodicalId":11643,"journal":{"name":"Elements","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47615017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
European Association of Geochemistry 欧洲地球化学协会
2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.112
{"title":"European Association of Geochemistry","authors":"","doi":"10.2138/gselements.19.2.112","DOIUrl":"https://doi.org/10.2138/gselements.19.2.112","url":null,"abstract":"","PeriodicalId":11643,"journal":{"name":"Elements","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135673121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
International Mineralogical Association 国际矿物学协会
2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.126
{"title":"International Mineralogical Association","authors":"","doi":"10.2138/gselements.19.2.126","DOIUrl":"https://doi.org/10.2138/gselements.19.2.126","url":null,"abstract":"","PeriodicalId":11643,"journal":{"name":"Elements","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135673483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mineralogical Society of America 美国矿物学学会
2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.124
{"title":"Mineralogical Society of America","authors":"","doi":"10.2138/gselements.19.2.124","DOIUrl":"https://doi.org/10.2138/gselements.19.2.124","url":null,"abstract":"","PeriodicalId":11643,"journal":{"name":"Elements","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135673484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tectonic and Paleoclimatic Setting for Hominin Evolution in Eastern Africa 东非古人类演化的构造和古气候背景
IF 4.5 2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.82
L. Olaka, C. Ebinger
{"title":"Tectonic and Paleoclimatic Setting for Hominin Evolution in Eastern Africa","authors":"L. Olaka, C. Ebinger","doi":"10.2138/gselements.19.2.82","DOIUrl":"https://doi.org/10.2138/gselements.19.2.82","url":null,"abstract":"As dynamic processes in the Earth’s mantle stretch and thin large sectors of the African plate, broad plateaus interrupted by deep valleys and flanking mountains have formed at the Earth’s surface. These vertical and horizontal crustal movements occur concurrent with global climate changes, both of which happen over diverse spatial and temporal scales. Together, they modulated eastern Africa’s habitats for early hominins, and for flora and fauna in general. The habitat for hominin evolution, therefore, is shaped by bottom-up and top-down processes. Broad plateau uplift in Ethiopia had initiated by 30 Ma, coincident with or after flood magmatism at 45 Ma when dry seasonal woodland environments initiated in eastern Africa. The fossil-rich sedimentary sequences partially filling the 30–70-km-wide rift basins record the history of human evolution, as well as the complex interplay between climate change, uplift, volcanism, and faulting in equatorial Africa. The lake shorelines and hydrothermal systems served as oases for hunter-gatherers, and the rough topography of the faulted landscape may have served as refugia. Here, we outline the relevant time–space patterns to establish the geodynamic and paleoclimatic context for human evolution in eastern Africa.","PeriodicalId":11643,"journal":{"name":"Elements","volume":" ","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43707898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laetoli: The Oldest Known Hominin Footprints in Volcanic Ash Laetoli:火山灰中最古老的人类足迹
IF 4.5 2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.104
A. Zaitsev, A. Chakhmouradian, C. Musiba
{"title":"Laetoli: The Oldest Known Hominin Footprints in Volcanic Ash","authors":"A. Zaitsev, A. Chakhmouradian, C. Musiba","doi":"10.2138/gselements.19.2.104","DOIUrl":"https://doi.org/10.2138/gselements.19.2.104","url":null,"abstract":"Hominin footprints are rare in eastern Africa and known from the Laetoli (Tanzania), Ileret (Kenya), and Melka Kunture (Ethiopia) areas. The prints were made by Australopithecus afarensis, Homo erectus, and Homo heidelbergensis. Their study is an important source of information regarding hominin body size, anatomy, positional behavior, and locomotion biomechanics. The most-known and best-studied examples are the 3.66-Ma Australopithecus afarensis footprint trackways at Laetoli, which represent the oldest known record of hominin bipedalism in Africa. The footprints occur in a volcanic tuff sequence, which was originally deposited as melilite nephelinite ash. Recent excavations show that this valuable paleoanthropological site is slowly disappearing as a result of surface diagenetic processes. Preservation of the footprints is essential and urgently needed.","PeriodicalId":11643,"journal":{"name":"Elements","volume":"95 23","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41311712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Power of the Collective Imagination of Homo Sapiens! 智人集体想象力的力量!
IF 4.5 2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.71
Becky Lange
{"title":"The Power of the Collective Imagination of Homo Sapiens!","authors":"Becky Lange","doi":"10.2138/gselements.19.2.71","DOIUrl":"https://doi.org/10.2138/gselements.19.2.71","url":null,"abstract":"<jats:p />","PeriodicalId":11643,"journal":{"name":"Elements","volume":"1 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68118640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mineralogical Association of Canada 加拿大矿物学协会
2区 地球科学
Elements Pub Date : 2023-04-01 DOI: 10.2138/gselements.19.2.114
{"title":"Mineralogical Association of Canada","authors":"","doi":"10.2138/gselements.19.2.114","DOIUrl":"https://doi.org/10.2138/gselements.19.2.114","url":null,"abstract":"","PeriodicalId":11643,"journal":{"name":"Elements","volume":"327 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135673124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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