Collaborative Research: Facility Support: National Lacustrine Core Facility (LacCore)

1462297 Ito明尼苏达大学双城分校和杜卢斯（Duluth-1462347）校区之间的这一合作赠款支持重新为LacCore的运营和实验室改进提供部分资金，LacCore是一个国家多用户湖泊沉积物核心档案和分析设施。LacCore以前在UNIX- 0949962和UNIX- 0949285下得到支持。该LacCore设施支持湖沼社区的研究，有助于我们了解过去的气候，生态系统，并通过详细的沉积学分析和湖泊核心的档案服务在大陆上的地球化学动力学。LacCore运营开放式实验室，允许社区获得专业的现场和实验室设备以及工作人员的专业知识，用于初始岩心描述（ICD）方法，包括：岩心分裂;非破坏性多传感器岩心测井; XRF岩心扫描; SEM成像;孢粉学制备;粒度分析;碳库仑法;通过X射线衍射进行相鉴定;生物二氧化硅分析;用于后续稳定同位素分析的样品制备;数字岩心摄影和光学岩相学/涂片分析。 LacCore还提供冷藏和冷冻岩心储存和档案服务，以及现场取芯设备和湖泊取芯考察的策展材料（D管）支持。 LacCore的工作人员负责湖核心ICD元数据的管理和所有数据到NOAA的例行传输？该项目主要包括：在美国国家地球物理数据中心（National Geophysical Data Center）开发岩心图像分析和对比软件;开展教育和外联活动，包括为明尼苏达州的美洲原住民部落资源管理人员提供咨询;支持学生旅行赠款，使学生了解岩心描述和分析的标准协议;开发社交媒体和智能手机应用程序，以支持地球科学教育和公众意识。 随着明尼苏达大学被选为新的大陆科学钻探协调办公室（CSDCO; CN- 1338322），取代了过去由DOSECC管理的角色，LacCore PI现在将参与大型钻探项目的规划和执行。LacCore设施将继续作为数百名研究人员，特别是研究生的培训基地，在取芯和岩心分析技术方面。LacCore的工作人员从事教育和外联工作，包括一个正在进行的合作项目，目的是与来自上级齐佩瓦和丰迪拉克部落和社区学院的丰迪拉克部落的大学生和教师一起研究明尼苏达州北方野生稻湖的古环境。LacCore的工作人员积极参与外联活动，以支持在地球科学中代表性不足的学生的参与。 LacCore数据可通过基于网络的开放数据档案访问，LacCore工作人员积极维护和开发软件工具，以协助成像和解释湖芯记录。

1462297 Ito This collaborative grant between the University of Minnesota - Twin Cities and Duluth (EAR-1462347) campuses supports renewed partial funding of operations and laboratory improvements at LacCore, a national multi-user lake sediment core archival and analysis facility. LacCore was previously supported under EAR- 0949962 and EAR- 0949285. The LacCore Facility supports the limnological community for studies that contribute to our understanding of past climates, ecological systems, and biogeochemical dynamics on the continents though detailed sedimentological analysis and archival services for lacustrine cores. LacCore operates open laboratories to allow community access to specialized field and laboratory equipment and staff expertise for Initial Core Description (ICD) methods including: core splitting; non-destructive multi-sensor core logging; XRF core scanning; SEM imaging; palynological preparation; grain size analysis; carbon coulometry; phase identification via x-ray diffraction; biogenic silica analysis; preparation of samples for subsequent stable isotopic analysis; digital core photography, and optical petrography/smear slide analysis. LacCore also provides refrigerated and frozen core storage and archival services and field coring equipment and curatorial materials (D-tubes) support for lake coring expeditions. LacCore staff are responsible for curation of lake core ICD metadata and the routine transmission of all data to NOAA?s National Geophysical Data Center, development of software for core image analysis and correlation, and education and outreach activities including advising Native American tribe resource managers in the state of Minnesota, supporting student travel grants to expose students to standard protocols for core description and analysis, and developing social media and smart phone applications in support of geoscience education and public awareness. With the selection of the University of Minnesota as the new Continental Scientific Drilling Coordination Office (CSDCO; EAR- 1338322), replacing a role that used to be managed by DOSECC, LacCore PIs will now engage in large drilling project planning and execution.The LacCore Facility will continue as a training ground for hundreds of researchers, particularly graduate students, in coring and core analysis techniques. LacCore staff are engaged in education and outreach including an ongoing collaborative project aimed at study of the paleoenvironments of wild rice lakes in northern Minnesota with tribal college students and teachers from the Fond du Lac Band of Lake Superior Chippewa and Fond du Lac Tribal and Community College. LacCore staff actively engage in outreach activities to support the engagement of underrepresented students in the geosciences. LacCore data are accessible via web-based open data archives and LacCore staff actively maintain and develop software tools that assist in the imaging and interpretation of lake core records.***