Relating physical properties from geophysical downhole logging data with clay mineralogy from drill core samples of the ICDP Lake Junín drilling project, Peru

该项目的目的是通过ICDP湖Junín钻井项目的井下测井数据和岩心样本，研究和比较君宁湖沉积物的岩性单元的物理性质和矿物学，以便更好地了解气候变化对沉积速率的影响。更详细地说，我们的目标是改进井下测井数据作为一种工具的使用，以确定(i) Junín湖沉积物的物理性质，（ii）基于旋回地层特征的年龄深度关系，以及（iii）与岩心样品比较的矿物学和地球化学特征。为了实现这些目标，我们将使用GFZ开发的专用算法进行聚类分析，以识别湖泊沉积物的地球物理特性，对井下测井数据进行光谱分析，以研究古气候影响，并对岩心样品中的粘土矿物进行矿物学和地球化学分析，将其与测井数据中观察到的小尺度和大尺度矿物学趋势进行比较。这些信息将用于调查该湖Junín的地质历史及其与气候变化的关系。我们还打算加强原位井眼测量作为标准科学研究人员在该主题中的关键和补充研究的价值，突出科学研究。

The goal of this project is to investigate and compare the physical properties and mineralogy of the lithological units of Lake Junin sediments by downhole logging data and core samples from the ICDP Lake Junín drilling project, in order to better understand the influence of climate changes to sedimentation rates. In more detail, our aim is to improve the use of downhole logging data as a tool to determine (i) the physical properties of Lake Junín sediments, (ii) the age depth relationship based on cyclostratigraphic characteristics, and (iii) mineralogical and geochemical characteristics for comparisons with core samples.To achieve these goals, we will use cluster analysis to identify the geophysical properties in the lacustrine sediments with a dedicated algorithm developed at GFZ, spectral analysis of downhole logging data to investigate paleoclimatic implications, and mineralogical and geochemical analyses of clay minerals in core samples, to compare them with small and large scale mineralogical trends observed in logging data. This information will be used to investigate the geological history of the Lake Junín and the relationship with climate changes. We also intend to strengthen the value of the in situ borehole measurements as a key and complementary research to the standard scientific researchers in this topic giving a prominent scientific research.