[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Hi guys,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the objective of this video is to look at
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the bedding structures that form\Nwhen sediment is deposited.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These bedding structures all form \Nin different environments.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These environments which create the bedding \Nstructures will be discussed.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Firstly,\Nwe will talk about the horizontal beds,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,or strata,\Nthat the sediment is laid down in.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Sedimentary rock is stratafied,\Nwhich means that it has layers.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These layers have formed because sediment \Nis laid down in horizontal layers called strata.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Between each layer of strata,\Nwe have bedding planes.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And these bedding planes form because \Nthe region has experienced
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,a change in depositional \Nenvironment or material.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We can see here in this photo that we have \Nhad one type of sediment laid down.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And then,\Na change in depositional environment
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,has caused a different type of sediment\Nto be laid down on top,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in between which is a bedding plane.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We know that the strata towards\Nthe bottom of a series is older
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,than the strata at the top.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And this happens because the sediment \Nis laid in this way.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Bedforms are formations that occur due to \Nthe movement of wind and water.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Bedforms are created when water or wind,\Nflows over loose sediment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And the shape and the texture of the bedform,\Ndepends on the velocity of the flowing wind or water,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and the size of the sediment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,One type of bedform is ripples.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Ripples occur to due the flow of water.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Asymetrical ripples occur when water's \Njust flowing in one direction.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,As we can see here.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Symetrical ripples will occur \Nwhen the waves oscillate back and forth.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,As we can see here.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These bedforms can be preserved in\Nthe sedimentary rock,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,because new sediment can be deposited on top.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And the formation will remain the same\Nand will be lithified in this shape.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Another type of bedform are dunes.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Dunes form with the same formation process \Nas the asymetrical ripples when they form
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,due to water.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,However,\Ndunes form due to the action of wind.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Cross Bedding is another type of \Nbedform.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Cross bedding forms in the process of \Nmaking ripples or dunes.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Whether