Collaborative Research: Facility Support: Completing the Western North American Volcanic and Intrusive Rock Database (NAVDAT)

该提案要求提供资金，以完成NAVDAT数据库和门户网站的工作。其目的是用北美西部从喀斯喀特向南穿过墨西哥中部的新生代和中生代喷出和侵入岩的年龄和化学数据完成数据库的填充。NAVDAT系统的大部分管理工作将在项目结束前移交给EarthChem工作。拟开展的工作将集中在以下几个方面：1.扩展数据库内容。继续输入北卡罗来纳州西部新生代和中生代岩石的数据，特别强调侵入火成岩；b.帮助促进墨西哥研究人员为收集和汇编该地区类似年龄岩石的新数据而进行的持续努力；c.尽可能与加拿大和美国地质调查局的小组建立联系，以进一步扩大数据保有量。通过以下方式提高门户网站的可用性。继续改进用户界面和搜索选择；b.增加其他查询选项，如火山场名称，并根据地点、成分和年龄创建预编的数据集；c.通过纳入用户定义的动画、数据输出格式和绘图/绘图的例程，改善与网站的互动。通过这种方式建立社区参与。继续举办涉及众多不同群体的年度讲习班；b.与国际团体密切合作，特别是在墨西哥；c.与地球化学的努力合作。拟议工作的智力价值在于服务和维护包含不同种类数据的大型数据库的挑战。此外，将数据库管理迁移到EarthChem系统为此类转换提供了一个原型；随着创建更多的数据库，这种迁移必须变得普遍。研究人员还预计，这项拟议的工作将对固体地球的动力学产生基本的新理解，如岩浆作用与构造的关系。NAVDAT项目将使学生和研究人员能够在他们的桌面上访问高质量的数据汇编，能够提取数据集，绘制化学变化图，并将数据放置在各种地质、地球物理和地理底图上。拟议的工作将扩大现有数据的地理和年龄范围，并为北美西部建立一个非常完整的数据集。这项工作将导致地球化学系统的一个主要组成部分的完成。

This proposal requests funding to complete work on the NAVDAT database and web portal. The aim is to finish populating the database with age and chemical data from Cenozoic and Mesozoic extrusive and intrusive rocks for western North America, from the Cascades southward through central Mexico. Most management of the NAVDAT system will be transferred to the EarthChem effort by the end of the project. The proposed work will focus on the following tasks:1. Expand database content bya. continuing to enter data for Cenozoic and Mesozoic rocks in western NA, with specific emphasis on intrusive igneous rocks;b. helping to facilitate ongoing efforts by researchers based in Mexico to gather and compile new data for that region for rocks of similar age;c. linking to the extent possible with efforts by groups in Canada and the US Geological Survey to further expand data holdings.2. Improve usability of the web portal bya. continuing to refine the user interface and search selections;b. adding additional options for query such as volcanic field names and creating precompiled datasets based on location, composition, and age;c. improving interaction with the website by incorporating routines for userdefined animations, data output formats, and plotting/mapping.3. Build community involvement bya. continuing to hold yearly workshops that involve a large and diverse group;b. working closely with international groups, particularly in Mexico;c. collaborating with the EarthChem effort.Intellectual Merit of the proposed work lies in the challenges of serving and maintaining a large database containing heterogeneous data. In addition, migration of database management to the EarthChem system presents an opportunity to prototype such transitions; migration of this sort must become common as more databases are created. The investigators also anticipate that fundamental new understandings about the dynamics of the solid Earth such as the relation of magmatism to tectonics will be emerge from the proposed work.Broader Impacts. The NAVDAT project will give students and researchers access to high-quality data compilations on their desktop, with the capability to extract datasets, plot chemical variation diagrams, and place data on a variety of geological, geophysical, and geographical base maps. The proposed work will expand the geographical and age range of available data, as well as building a very complete dataset for western North America. This work will lead to completion of a major component of the EarthChem system.