°æ±âµµ ¿¬Ãµ±º Àü°îÀ¾ Àº´ë¸® 728-1¿¡ À§Ä¡ÇÑ ÇÑź° Áö·ù Â÷źõ(¼ö·¹¿©¿ï) ÇÏ·ùÀÇ 'Àº´ë¸® ½À°î°ú ÆÇ»óÀý¸®'¸¦ ã¾Æ º¸¾Ò½À´Ï´Ù.
[½À°îfold]
ÇÑź°ÀÇ Áö·ùÀÎ Â÷źõ¿¡ ÀÖ´Â À§ ¾Ï¼®Àº ¾à 4¾ï ³â Àü ¾èÀº ¹Ù´Ù¿¡¼ ¸¸µé¾îÁø ÅðÀûÃþÀÌ À¶±âµÇ¸é¼ ¾Ð·ÂÀ» ¹Þ¾Æ ¾Ï¼®À¸·Î ´Ü´ÜÇØÁø °ÍÀÌ´Ù.
The upper rock at Chatancheon, a tributary of the Hantan River, was hardened into rock under pressure as the sedimentary layers formed in shallow waters rose about 400 million years ago.
ÀÌ ¾Ï¼®Àº 2¾ï 5õ¸¸ ³â Àü Áö°¢º¯µ¿À¸·Î ¾ç ¿·¿¡¼ ¹Ì´Â °ÇÑ È¾(üô)¾Ð·ÂÀ» ¹Þ¾Æ ¹°°áó·³ ÈÖ¾îÁ³´Ù.
The rock was bent like a wave 250 million years ago by a crustal change, with strong lateral pressures on both sides.
½À°îÀº ¼öÆòÀ¸·Î ÅðÀûµÈ ÁöÃþÀÌ È¾(üô)À¸·Î ¾Ð·ÂÀ» ¹ÞÀ¸¸é ÁöÃþÀÌ À§¾Æ·¡·Î ÈÖ¾îÁö°Ô µÈ´Ù. ÀÌ·¯ÇÑ ±¸Á¶¸¦ ½À°îÀ̶óÇÑ´Ù.
In folds, when the horizontally deposited layers are pressurized horizontally, the layers are bent up and down. This structure is called fold.
ÀϹÝÀûÀ¸·Î ½À°îÀº ÃþÀ¸·Î ÀÌ·ïÁø ¾Ï¼®¿¡¼ Àß °üÂûµÈ´Ù. ÃþÀÌ Á³±â ¶§¹®¿¡ ÈÖ¾îÁø ¸ð½ÀÀÌ ´«¿¡ Àß ¶ç±â ¶§¹®ÀÌ´Ù.
In general, folds are well observed in layered rock. Because the layers are stacked, the warpage is noticeable.
½À°îÀº ¹°°áó·³ À§¾Æ·¡·Î ÈÖ¾îÁö´Âµ¥, ¹°°á »çÀÌÀÇ °Å¸®°¡ ¾ÆÁÖ ÀÛÀº ÇÑź°ÀÇ ½À°î¹ÙÀ§¿Í °°Àº ¸ð¾çÀÌ Àִ°¡ Çϸé, ¼ö ų·Î¹ÌÅÍ¿¡ ´ÞÇØ ¾Æ·¡·Î ÈÖ¾îÁø ºÎºÐÀÌ Ä§½ÄµÇ¾î °è°îÀ» Çü¼ºÇÏ´Â °æ¿ì°¡ Çã´ÙÇÏ´Ù.
Folds bend up and down like waves, and they have the same shape as the folded rocks of the Hantan River with very small distances. And also the distance between the waves is several kilometers, and the downward bends erode to form valleys.
[ÆÇ»óÀý¸®Sheeting Joints]
ÆÇ»óÀý¸®´Â ¾Ï¼® À§ÀÇ ÈëµéÀÌ Á¦°ÅµÇ¸é¼ ÇÏÁßÀ» ´ú ¹Þ°Ô µÇ¸é(ħ½Ä µî¿¡ ÀÇÇØ ÇÏÁßÀÌ ¾ø¾îÁö¸é) ¾Ï¼®ÀÌ ÀÂÊÀ¸·Î ÆØâÇϱ⠶§¹®¿¡ ÁöÇ¥¿¡ ÆòÇàÇÏ°Ô °¡·Î·Î Æ´ÀÌ »ý±â´Â Àý¸®(ï½×â)¸¦ ¸»ÇÑ´Ù.
Sheeting joints are joints that form gaps parallel to the surface because the rock expands upwards when the soil on the rock is removed and is less loaded (eg, by erosion).
ÀϹÝÀûÀ¸·Î ´Ü´ÜÇÑ È°¾Ï µî¿¡¼ ¸¹ÀÌ ¹ß»ýÇÏÁö¸¸ °µµ°¡ ºñ±³Àû ¹«¸¥ ¿ë¾Ï°ú »ç¾Ï µî¿¡¼µµ ³ªÅ¸³´Ù.
Generally occurs in hard granite, etc., but also occurs in lava and sandstone, which are relatively soft.
[Ŭ¸µÅ©Clink ]
ÆÇ»óÀý¸® ¾Æ·¡ºÎºÐ¿¡´Â ºÓÀº ÈëÀÌ º¸ÀδÙ. ¿ø·¡ ÀÌ°÷ÀÌ Èë°ú ÀÚ°¥ÀÌ ÀÖ´ø ÇÏ»óÀ̾ú´Ù.
Red soil can be seen in the lower part of the plate joint. Originally, this was a riverbed with soil and gravel.
±× ÇÏõÀ» µ¤¾î¹ö¸° ¿ë¾ÏÀÌ ÆÇ»óÀý¸® µîÀ¸·Î ¶³¾îÁ® ³ª°¡¸é¼ ¿ø·¡ ÇÏ»óÀÌ µå·¯³ª°Ô µÈ °÷ÀÌ´Ù.
This is the place where the original river bed was exposed as the lava that covered the river fell into a plate joint or a column joint.
ÀÌ·¯ÇÑ ºÓÀº ÈëÀÌ ÀÖ´Â ¿ø·¡ÀÇ ÇÏ»ó°ú ¿ë¾Ï°úÀÇ °æ°è¸¦ Ŭ¸µÅ©¶ó ºÎ¸¥´Ù.
The boundary between the original bed with red soil and lava is called a clink.