The Sedimentary Record最新文献_第3页

Overnight formation of a bouldery alluvial fan by a torrential rain in a granitic mountain (Mt. Seoraksan, Republic of Korea) 在花岗岩山(韩国雪岳山)，暴雨在一夜之间形成了一个卵石冲积扇。

The Sedimentary Record Pub Date : 2021-06-30 DOI: 10.2110/sedred.2021.2.2

Jisu Kim, K. Woo, K. Lee, Y. Sohn

{"title":"Overnight formation of a bouldery alluvial fan by a torrential rain in a granitic mountain (Mt. Seoraksan, Republic of Korea)","authors":"Jisu Kim, K. Woo, K. Lee, Y. Sohn","doi":"10.2110/sedred.2021.2.2","DOIUrl":"https://doi.org/10.2110/sedred.2021.2.2","url":null,"abstract":"Mt. Seoraksan, Korea, is a rugged granitic mountain where extremely steep slopes and strongly seasonal rainfall have facilitated bedrock exposure and geomorphic changes mainly by rockfalls and streamflows. Although the environment was not suitable for alluvial fan formation, a bouldery alluvial fan, 170 m long and 330 m wide, formed overnight by a heavy summer rain in 2006. The fan consists of several meter-high boulder mounds and gently undulating cobble bars/sheets that are arranged in a fluvial longitudinal bar-like pattern. They are interpreted to have formed by highly competent and turbulent sheetfloods, which temporarily had the properties of hyperconcentrated flood flows. Formation of the whole alluvial fan by a single, casual hydro-meteorological event is inferred to have been possible because a threshold condition was reached in the source area. A rainfall event, which would have had no extreme effects before reaching the threshold, could probably trigger massive remobilization of bouldery sediments on the valley floors. The Seoraksan alluvial fan thus demonstrates the role of a geomorphic threshold in causing drastic changes in the hydrologic performance of the watershed. The morphology and sedimentology of the Seoraksan alluvial fan suggest that the fan is a modern example of a sheetflood-dominated alluvial fan, which has largely been ignored in spite of their potential diversity and abundance in glacial to periglacial, tropical, and temperate environments.","PeriodicalId":137898,"journal":{"name":"The Sedimentary Record","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129649004","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}

引用次数: 2

Sustainability Without Geology? A Shortsighted Approach 没有地质的可持续发展?目光短浅

The Sedimentary Record Pub Date : 2021-06-30 DOI: 10.2110/sedred.2021.2.1

A. Fildani, Angela M. Hessler

{"title":"Sustainability Without Geology? A Shortsighted Approach","authors":"A. Fildani, Angela M. Hessler","doi":"10.2110/sedred.2021.2.1","DOIUrl":"https://doi.org/10.2110/sedred.2021.2.1","url":null,"abstract":"O the last few decades, the concept of sustainability has been proposed and championed as the answer to the impending challenges our society will be facing in the future. It has been a rallying opportunity for the broad earth sciences community and a good starting point for such a community to impact societal and policy decisions; however, it has been an opportunity we have largely missed thus far. We are not the first to notice that the sustainability wave has left geosciences behind. In fact, almost ten years ago, Grimm and Van Der Pluijm (2012) lamented the absence of geoscientists at a National Academies Symposium aimed at “Science, Innovation, and Partnerships for Sustainable Solutions.” Sustainability theory is rooted in three interconnected domains or pillars: social, economic, and environmental sustainability. Much of the early notion stemmed from the United Nations’ initiatives where the basic concepts were sharpened over the last 50 years (see Purvis et al., 2019, for a review of concepts through time). The anticipation is that the three pillars, if properly harmonized, will improve both the present and future potential to meet human needs and aspirations (https://sdgs.un.org/goals). So, it is often stated that the main drive behind sustainability—and its corollary initiatives—is to explore the capacity for the biosphere and human civilization to co-exist, in which the term (sustainability) is thrown around as the deus ex machina that will, if correctly implemented, save us and our planet. While it is important for humans to act upon the foreseeable changes to our planet with urgent mitigation—such as the upcoming climate crisis—we fear that the current strategies are too shortsighted and anthropocentric to produce durable solutions. This may be because sustainability education and research are taking place in the absence of geological sciences, and without","PeriodicalId":137898,"journal":{"name":"The Sedimentary Record","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121052319","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}

引用次数: 5

Renovation of The Sedimentary Record 沉积记录的更新

The Sedimentary Record Pub Date : 2021-03-30 DOI: 10.2110/sedred.2021.1.02

J. Pickering, Jeong‐Hyun Lee

引用次数: 0

"Enriching Lives within Sedimentary Geology": Actionable Recommendations for Making SEPM a Diverse, Equitable and Inclusive Society for All Sedimentary Geologists “丰富沉积地质学的生活”:使SEPM成为所有沉积地质学家多样化、公平和包容的社会的可行建议

The Sedimentary Record Pub Date : 2020-09-30 DOI: 10.2110/sedred.2020.3.4

A. Fernandes, A. Abeyta, R. Mahon, R. Martindale, K. Bergmann, C. Jackson, T. Present, D. Reano, T. Swanson, K. Butler, Sarah K. Brisson, C. Johnson, D. Mohrig, M. Blum

{"title":"\"Enriching Lives within Sedimentary Geology\": Actionable Recommendations for Making SEPM a Diverse, Equitable and Inclusive Society for All Sedimentary Geologists","authors":"A. Fernandes, A. Abeyta, R. Mahon, R. Martindale, K. Bergmann, C. Jackson, T. Present, D. Reano, T. Swanson, K. Butler, Sarah K. Brisson, C. Johnson, D. Mohrig, M. Blum","doi":"10.2110/sedred.2020.3.4","DOIUrl":"https://doi.org/10.2110/sedred.2020.3.4","url":null,"abstract":"Innovative science benefits from diversity of thought and influence at all waypoints along the scientific journey, from early education to career-length contributions in research and mentorship. Scientific societies, like the Society for Sedimentary Geology (SEPM), steward their innovators and the direction of the science, thereby defining the societal impact and evolution of a discipline. They are uniquely positioned to promote the representation and success of all scientists, including those from minoritized populations, through proactive advocacy, and inclusive mentorship, awards, and leadership. We introspectively review available records of SEPM membership, leadership, awardees, and editorial boards to identify areas for growth and begin a dialogue about how the society and its members can work together to better reflect our community. In the last decade, SEPM has seen a decline in membership, while representation and recognition of scientists from minoritized groups has remained low. Awards and honors have overwhelmingly gone to men, even in the last ten years, and very few women or people of color are in leadership roles. SEPM has recently taken positive steps towards becoming more inclusive (e.g., the Code of Professional Conduct); however, much more work is needed. We provide recommendations for swift actions that SEPM and its members should undertake for the society to become a diverse, inclusive, and equitable environment where all scientists thrive. The systemic changes needed will take continuous effort, which must be shared by all of us, to build an enduring legacy that we can be proud of.","PeriodicalId":137898,"journal":{"name":"The Sedimentary Record","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123578054","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}

引用次数: 5

Fitted-Fabric Grainstones - Commonly Overlooked Evidence for Vadose Diagenesis and Subaerial Exposure 贴合织构颗粒岩-通常被忽视的孔隙成岩作用和地面暴露的证据

The Sedimentary Record Pub Date : 2019-09-01 DOI: 10.2110/sedred.2019.3.4

Langhorne B. Smith

引用次数: 4

Deep convolutional neural networks as a geological image classification tool 作为地质图像分类工具的深度卷积神经网络

The Sedimentary Record Pub Date : 2019-06-30 DOI: 10.2110/sedred.2019.2.4

R. P. D. Lima, A. Bonar, D. Coronado, K. Marfurt, Charles D. Nicholson

引用次数: 40

Domes, Rings, Ridges, and Polygons: Characteristics of Microbialites from Utah's Great Salt Lake 圆顶、环状、脊状和多边形:犹他州大盐湖微生物岩的特征

The Sedimentary Record Pub Date : 2019-03-31 DOI: 10.2110/sedred.2019.1.4

M. V. Berg

引用次数: 16

Report on the International Sedimentological Congress, Quebec 国际沉积学大会报告，魁北克

The Sedimentary Record Pub Date : 2018-12-31 DOI: 10.2110/SEDRED.2018.4.3

J. Bynum, Andrew Cummings, Autum R. Downey, Rebecca G. Englert, Luke P. Fritz, Maria N. Sider, Alice F. Stagner, F. Tamakloe, A. Tevyaw, L. West, S. William

引用次数: 0

Carbonate mud deposited below storm wave base: A critical review 风暴波基底下沉积的碳酸盐泥:综述

The Sedimentary Record Pub Date : 2018-12-31 DOI: 10.2110/sedred.2018.4.4

L. Birgenheier, Shawn A. Moore

引用次数: 8

Fluvial architecture of the Burro Canyon Formation using UAV-based photogrammetry and outcrop-based modeling: implications for reservoir performance, Rattlesnake Canyon, southwestern Piceance Basin, Colorado 基于无人机摄影测量和露头建模的Burro峡谷组河流构造:对科罗拉多州Piceance盆地西南部响尾蛇峡谷储层性能的影响

The Sedimentary Record Pub Date : 2018-09-30 DOI: 10.2110/sedred.2018.3.4

K. Lewis, M. Pranter, Z. Reza, R. Cole

{"title":"Fluvial architecture of the Burro Canyon Formation using UAV-based photogrammetry and outcrop-based modeling: implications for reservoir performance, Rattlesnake Canyon, southwestern Piceance Basin, Colorado","authors":"K. Lewis, M. Pranter, Z. Reza, R. Cole","doi":"10.2110/sedred.2018.3.4","DOIUrl":"https://doi.org/10.2110/sedred.2018.3.4","url":null,"abstract":"The stratigraphic variability of fluvial architectural elements and their internal lithological and petrophysical heterogeneity influence static connectivity and fluid flow. Analysis of the fluvial architecture and facies heterogeneity of the Lower Cretaceous Burro Canyon Formation provides insight regarding their impact on reservoir performance. The Burro Canyon Formation as exposed in Rattlesnake Canyon, Colorado, forms stacked amalgamated and semi-amalgamated channel complexes that consist of amalgamated and isolated fluvial-bar channel deposits and floodplain fines, and represents a perennial, braidedfluvial system. Detailed two(2-D) and three-dimensional (3-D) static and dynamic reservoir models are constrained using stratigraphic measured sections, outcrop gamma-ray measurements, and Unmanned Aerial Vehicle (UAV)-based photogrammetry. Resulting breakthrough time and sweep efficiency suggest subsurface reservoir performance is most effective perpendicular to paleoflow direction in amalgamated channels. Perpendicular to paleoflow, breakthrough time is 9% shorter than parallel to the paleoflow and sweep efficiency is, on average, 16% greater due to greater sandstone connectivity in this orientation. Variability of preserved channels and lateral pitchouts results in lower recovery efficiency. Facies heterogeneity can account for 50% variation in breakthrough time and slightly lower recovery efficiency (5%). Cemented conglomerates that form channel lags above basal scour surfaces can also create fluid-flow barriers that increase breakthrough time and decrease sweep efficiency (25%) and recovery efficiency (22%).","PeriodicalId":137898,"journal":{"name":"The Sedimentary Record","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133418579","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}

引用次数: 2