Digital Tutorial for Sandstone Petrography

砂岩岩相学数字教程

• 批准号: 0230578
• 负责人: Kitty Milliken
• 金额: --
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-01 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0230578&HistoricalAwards=false
• 关键词: Digital; Tutorial; Sandstone; Petrography

A demonstration version of an interactive digital tutorial in sandstone petrology was developedand tested during a one-year proof-of-concept project. The current tutorial is a collection of over petrographic images of sandstone components in which mapped regions respond to active inquiry (by mouse clicks) to reveal identification and conceptual information. Organized around the Folk sandstone classification, the image collection addresses both provenance and diagenesis and serves to supplement, and even partially replace, traditional laboratory exercises. Formal educational assessment of the tutorial was undertaken at the University of Texas at Austin during two semesters of GEO 416M, Sedimentary Rocks. The attitudes and attainments of undergraduate sedimentary petrology students who did and did not utilize the demonstration version as a required resource in their laboratory exercises show that students respond extremely well to this style of learning. Assessment results support the soundness of the educationalapproach and also indicate some clear directions for future development. This full development project is doubling the size of the image collection to greater than 600 images and associated text as well as adding substantial new elements in response to student experiences with the demonstration version. Assessment activities are continuing at the University of Texas and at four other universities. The digital sandstone tutorial is providing a well-balanced treatment of the principal petrographic characteristics of major sandstone components and the major sandstone types (and also examples of shales). The tutorial also includes self-assessment and skill modules that help students learn how to identify minerals, estimate the percentage of components, and texture. Publication through a non-profit organization makes this large collection of well-organized and intensely annotated sandstone images readily available to universities and individual students, including those that do not currently have access to petrographic thin section collections and petrographic expertise. The educational approach developed and demonstrated in this project can be applied to any natural science discipline that utilizes visual data.

在为期一年的概念验证项目中，开发并测试了砂岩岩石学交互式数字教程的演示版本。当前的教程是砂岩成分的岩相图像集合，其中映射区域响应主动查询（通过鼠标单击）以揭示识别和概念信息。该图像集围绕民间砂岩分类进行组织，解决了来源和成岩作用问题，并用于补充甚至部分取代传统的实验室练习。本教程的正式教育评估是在德克萨斯大学奥斯汀分校 GEO 416M（沉积岩）的两个学期期间进行的。在实验室练习中使用和未使用演示版本作为必需资源的沉积岩石学本科生的态度和成就表明，学生对这种学习方式的反应非常好。评估结果支持了教育方法的合理性，也为未来的发展指明了一些明确的方向。这个完整的开发项目将图像集合的大小增加了一倍，达到 600 多张图像和相关文本，并根据学生对演示版本的体验添加了大量新元素。德克萨斯大学和其他四所大学正在继续开展评估活动。数字砂岩教程对主要砂岩成分和主要砂岩类型（以及页岩示例）的主要岩相特征进行了均衡的处理。该教程还包括自我评估和技能模块，帮助学生学习如何识别矿物质、估计成分百分比和质地。通过非营利组织出版，使大学和个人学生可以轻松获得这一大量组织良好且注释丰富的砂岩图像，包括那些目前无法获得岩相薄片集和岩相专业知识的学生。该项目开发和演示的教育方法可以应用于任何利用视觉数据的自然科学学科。