|
|
Dating in Geological Science
Valčíková, Marie ; Teodoridis, Vasilis (advisor) ; Vančata, Václav (referee)
The presented Bachelor thesis has a character of a literature search and discusses aspects related to the determination of time in geological sciences. In the broader concept, the thesis can be divided into two major units. The first part describes the geological sciences, which are directly or indirectly related with determining the time, such as historical geology, stratigraphy, paleontology, structural and sedimentary geology. In this part the process of recording geological history of planet Earth is also defined and characterized, including specifications of the geological time scale and historical preview on issue of development in determining the time connected with issues of determining the age of the Earth. The second part of the thesis deals with relative and absolute methods that are used in geological sciences for determining the time. Two main laws of relative dating are presented, i.e. the law of superposition and the law of the same fossils. Absolute radiometric dating methods are briefly described and characterized with respect to their application to geological practice. While the selection reflects the commonality of the application in geology. Key words: time, geologic sciences, age of the Earth, relative dating, absolute dating
|
|
|
Microforms of sandstone relief and their using in relative dating
Krbcová, Klára ; Křížek, Marek (advisor) ; Engel, Zbyněk (referee)
Microforms and mesoforms play the main role in the sandstone relief. Their origin is conditioned by some processes, the main are weathering and erosion. Based on the background research, the deffinition, classification, diagenesis and occurrence of sandstones was described. The second part of the bachelor thesis is focused on the mechanism of weathering and erosion. The microforms and mesoforms of the sandstone relief were divided into groups according to the guiding process of their origin. The description of the sandstone forms, the way of their origin, the stage of development and their extension were described. In the practical part of the bachelor thesis, the microforms in the gorge Apatyka in CHKO Kokořínsko were analyzed. The practical part was focused expecially on honeycombs, because their extension in the gorge is huge and they enable the complex analyse of their location in the gorge and in the rock outcrops. Using suitable methods it was found, that the honeycombs are located primarily in the eastern quadrant, their coverage decrease with the decreasing height of the rock outcrops and their presence in the lowest and the highest parts of the rock walls is limited. The second part of the fieldwork was focused on the relative dating of the parts of the gorge with honeycombs. The odlest part of the...
|
|
|
Dating in Geological Science
Valčíková, Marie ; Teodoridis, Vasilis (advisor) ; Vančata, Václav (referee)
The presented Bachelor thesis has a character of a literature search and discusses aspects related to the determination of time in geological sciences. In the broader concept, the thesis can be divided into two major units. The first part describes the geological sciences, which are directly or indirectly related with determining the time, such as historical geology, stratigraphy, paleontology, structural and sedimentary geology. In this part the process of recording geological history of planet Earth is also defined and characterized, including specifications of the geological time scale and historical preview on issue of development in determining the time connected with issues of determining the age of the Earth. The second part of the thesis deals with relative and absolute methods that are used in geological sciences for determining the time. Two main laws of relative dating are presented, i.e. the law of superposition and the law of the same fossils. Absolute radiometric dating methods are briefly described and characterized with respect to their application to geological practice. While the selection reflects the commonality of the application in geology. Key words: time, geologic sciences, age of the Earth, relative dating, absolute dating
|
|
|
Microforms of sandstone relief and their using in relative dating
Krbcová, Klára ; Křížek, Marek (advisor) ; Engel, Zbyněk (referee)
Microforms and mesoforms play the main role in the sandstone relief. Their origin is conditioned by some processes, the main are weathering and erosion. Based on the background research, the deffinition, classification, diagenesis and occurrence of sandstones was described. The second part of the bachelor thesis is focused on the mechanism of weathering and erosion. The microforms and mesoforms of the sandstone relief were divided into groups according to the guiding process of their origin. The description of the sandstone forms, the way of their origin, the stage of development and their extension were described. In the practical part of the bachelor thesis, the microforms in the gorge Apatyka in CHKO Kokořínsko were analyzed. The practical part was focused expecially on honeycombs, because their extension in the gorge is huge and they enable the complex analyse of their location in the gorge and in the rock outcrops. Using suitable methods it was found, that the honeycombs are located primarily in the eastern quadrant, their coverage decrease with the decreasing height of the rock outcrops and their presence in the lowest and the highest parts of the rock walls is limited. The second part of the fieldwork was focused on the relative dating of the parts of the gorge with honeycombs. The odlest part of the...
|
guest ::
