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		<id>https://www.explainxkcd.com/wiki/index.php?title=1874:_Geologic_Faults&amp;diff=143909</id>
		<title>1874: Geologic Faults</title>
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				<updated>2017-08-10T03:15:10Z</updated>
		
		<summary type="html">&lt;p&gt;Anonymouse: Contrary to what appears to be a common myth in the UK, Americans have toffee (as you know it) *and* taffy - the latter being unrelated to the former.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1874&lt;br /&gt;
| date      = August 9, 2017&lt;br /&gt;
| title     = Geologic Faults&lt;br /&gt;
| image     = geologic_faults.png&lt;br /&gt;
| titletext = I live on a torn-bag-of-potato-chips-where-the-tear-is-rapidly-growing fault, which is terrifying.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by several fools with no knowledge of faults. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
This comic appears to be a successor to [[1714: Volcano Types]]. Similar to its predecessor, the comic explores several phenomena (in this case, geologic faults), both real phenomena and several made up for the point of a joke.&lt;br /&gt;
&lt;br /&gt;
A {{w|Fault (geology)|fault}} is a geologic feature that involves the boundaries of two {{w|tectonic plates}}.&lt;br /&gt;
&lt;br /&gt;
Thrust faults were previously mentioned in [[1082: Geology]], and in the title text of [[1388: Subduction License]], [[Beret Guy]] tells [[Cueball]] he can't be a 'normal' roomate because in his motion he is creating a reverse fault.&lt;br /&gt;
&lt;br /&gt;
====Real geologic faults====&lt;br /&gt;
;Normal fault&lt;br /&gt;
In a normal fault, the hanging wall (the upper wall; right) moves downward relative to the footwall (the lower wall; left). The Earth's crust is extended in this type of fault. &lt;br /&gt;
;Reverse fault&lt;br /&gt;
A reverse fault is basically the opposite of a normal fault. The hanging wall (left) moves upward relative to the footwall (right), and the Earth's crust is compressed.&lt;br /&gt;
;Transverse fault&lt;br /&gt;
A transverse fault, also known as a {{w|transform fault}}, is where the two plates move parallel to each other, but in opposite directions.&lt;br /&gt;
;Thrust fault&lt;br /&gt;
A {{w|thrust fault}} is when older rocks are pushed (or thrust) on top of younger rocks. The angles are typically lower (more horizontal) than in reverse faults.&lt;br /&gt;
&lt;br /&gt;
====Fictional joke faults====&lt;br /&gt;
;Taffy fault&lt;br /&gt;
This appears to involve one tectonic plate, that is being stretched out like a piece of {{w|Taffy (candy)|taffy}}.&lt;br /&gt;
;Splinted fault&lt;br /&gt;
This appears to be a normal or reverse fault to which someone has attached a large splint.&lt;br /&gt;
;Squeezed-bar-of-soap fault&lt;br /&gt;
Two plates seem to be moving towards each other, while a third smaller plate is squeezed between them and pushed upwards, depicting a slippery bar of soap sliding between hands.&lt;br /&gt;
;Apple power cable fault&lt;br /&gt;
The plate appears to have been twisted and bent so many times that parts of it are fraying, similar a frayed Apple {{w|MagSafe}} connector. A similar joke is used in [[1406: Universal Converter Box]].&lt;br /&gt;
;Brio fault&lt;br /&gt;
The Brio fault seems to be two tectonic plates which join together like the Brio train track pieces do. {{w|Brio (company)|BRIO}} is a company from Sweden that makes wooden toys.&lt;br /&gt;
;Torn-bag-of-potato-chips-where-the-tear-is-rapidly-growing fault&lt;br /&gt;
The title text refers to when a bag of chips gets a crack in it. When that happens, it will almost always continue to grow as people get chips out of the bag, sometimes very quickly. It would be frightening to live near a fault that behaved like this because that could cause major seismic events very quickly.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon. Lacks small description for each item.}}&lt;br /&gt;
:[The comic shows nine different schematic views to present geographic faults and some more.]&lt;br /&gt;
&lt;br /&gt;
:[Two planes with a slip fault drifting away to the left and right.]&lt;br /&gt;
:Normal fault&lt;br /&gt;
:[Two planes with a slip fault drifting against each other from left and right.]&lt;br /&gt;
:Reverse fault&lt;br /&gt;
:[Two planes moving sidewards.]&lt;br /&gt;
:Transverse fault&lt;br /&gt;
&lt;br /&gt;
:[The left plane moves above the other to the right.]&lt;br /&gt;
:Thrust fault&lt;br /&gt;
:[Two planes drifting away and the connection between them gets smaller.]&lt;br /&gt;
:Taffy fault&lt;br /&gt;
:[On top of both planes a small piece with splints holds them together.]&lt;br /&gt;
:Splinted fault&lt;br /&gt;
&lt;br /&gt;
:[The two planes pressing together with a piece in the middle moving topwards.]&lt;br /&gt;
:Squeezed-bar-of-soap fault&lt;br /&gt;
:[The right plane is connected to the left and swinging up and down.]&lt;br /&gt;
:Apple power cable fault&lt;br /&gt;
:[One side with a thin connector and the other with an evenly spaced hole connecting the planes together.]&lt;br /&gt;
:Brio fault&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;/div&gt;</summary>
		<author><name>Anonymouse</name></author>	</entry>

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