Cosmic ray exposure dating (CRE), using both Be in coexisting limestone and chert, respectively, has been carried out from the main scarps of six Deep Seated Landslides (DSL) and leads to landslide-failure CRE ages ranging from 3.7 to 4.7 ka.
They highlighted: (i) mainly single and fast ruptures and (ii) a possible concomitant initiation with a main peak of activity between 3.3 and 5.1 ka, centered at ca 4.2 ka.
Ways of Measuring Absolute Time Varves- Layers in sedimentary rock that were formed in a lake. sand in the spring from high rain volume and silt deposited in the winter when the top is covered in ice and water flow stops.) C is only used for organic material Evolution Evolution is the changing pattern of life forms.
The World is Flat- An entire lecture designed to convince students that the world is flat.A Hundred Proofs that the Earth is not a Globe Making Isolines PPT Lab 1-4 PPT Making a topographic map of a section of the Earth (see You Tube video to the right).Vocabulary Words Worksheet on Sedimentary Rocks Worksheet on the Rock Cycle Percent Deviation on Rocks Igneous Worksheet I Igneous Worksheet II Igneous Worksheet III Quartz DBQ Minerals DBQ Metamorphic Rocks Chemical Composition chart Metamorphic Rock Scheme PPT Sedimentary Scheme PPT Cookie Lab- a great review of rock types (and video) To avoid students taste-testing for Halite, I inform them that I have been specifically bred with genetic enhancements to be the ultimate Earth Science Teacher.A closer examination (not possible from this picture) would reveal contact metamorphism where the intruding igneouos rock "cooked" the pre-existing sedimentary layers.Formation of an Unconformity Layers are formed according to superposition.