Wei Ergou arranged for Donai to look for a ditch or depression within three kilometers of the left front of the Tree of Life alone, and Dorne set off with a bottle of mineral water and a machete. Erijia was also tired, and climbed the first branch on the big tree, saying that the branches were basically thicker than the trunk of ordinary big trees, and Erijia lay directly on the branches, and I couldn't see Erijia at all under the tree. The black man's ability to climb trees is really powerful, I still remember the last time Bai Ying asked the security guard to pick coconuts, the coconut tree was full of ten meters, the trunk was smooth and straight, and the security guard climbed to the top with his bare hands without much effort, and patted down several coconuts with his palm. 、

"Mr. Wei, why did you say that there was a gold mine on this side of the mountain in front of you when you were on the stone slope, and you just said that the gold mine is in this forest?" I actually wanted to ask this question for a long time, but first, the weather was too hot to stand it, and secondly, Wei Ergou said that he was worried that ants would pay attention to observe whether there were ants on the road, and he remembered this question when it was cool under the tree.

Wei Ergou snuffed out the cigarette butt in his hand and said: "Xiaosheng, I've told you N times, don't call me Mr. Wei, just call me Wei Ergou, Mr. Wei is not Mr. Wei is fake, making money is true, my slogan is"

"Make money,; Make a lot of money, it! When Wei Yiyun snatched Wei Ergou from the side, the three of us also laughed, "But seriously, old cousin, I also want to ask you, why do you say that there is a gold mine in this mountain?" “

"Three mountains and four are not exposed!" Wei Ergou picked up a cigarette and handed one to Wei Yiyun.

"Sanshan can't die?" I can't understand Wei Ergou's Mandarin with Guangxi adverbials.

"It's three mountains and four don't show up, three mountains of three mountains, four don't show up, don't show up! I used to hear my uncle mention this sentence when he was drinking tea when he was a child, but I don't know what it means. Wei Yiyun took Wei Ergou's cigarette and lit it with a lighter.

"First of all, Xiaosheng, do you know what kinds of gold there are in nature?" Wei Ergou wanted me to spit out a puff of smoke rings.

"Gold, platinum, tungsten," I blurted out, and I felt like I was right.

"! Gold, platinum, tungsten gold, it's not the same thing at all. White gold is simply a mixture of gold and other metals such as silver, nickel, copper, etc., and the color is whitish. Tungsten gold is a mixture of gold and tungsten. It's all gold! When Wei Yiyun heard my words, he immediately refuted my answer.

"How can platinum be gold, it's different, a platinum diamond ring will be passed down forever, according to your reasoning, platinum is a mixture of gold and other metals, and the price of platinum should be cheaper than gold, but I clearly remember that in the gold shop, platinum is more expensive than gold!" I also immediately refuted Wei Yiyun.

"That's platinum, not platinum! The chemical formula PT, gold and platinum are all AU, two different things, platinum is platinum, platinum is platinum! Wei Yiyun laughed when he heard my answer. To be honest, for the first time, I realized that platinum and platinum were two different things, and I always thought they were the same thing.

"Xiaosheng, it seems that you don't know enough about gold, let me tell you, gold, in nature, is mainly divided into two kinds, one is like a stone, called rock gold or vein gold, it is the ancient gold-bearing metamorphic rock and gold-bearing quartz veins formed by the crushing and weathering of the placer metamorphism, it is characterized by gold and some sulfides born in the quartz veins. There is also a kind of placer gold, that is, the rock gold is weathered, broken by the earth's crustal movement or rainwater rivers to some places to enrich the sand, gravel and gold mixture, after the rock gold is exposed to the surface, due to mechanical and chemical weathering, the gold-bearing veins or gold-bearing parent rocks are gradually broken into cuttings and gold grains. Under the action of external force carrying and sorting, these cuttings and gold grains are deposited in places such as mountain slopes, rivers and streams, lakesides, seashores, etc., forming placer gold, like sand, some people don't know that it is also called sand gold, and the sand of the sand is actually the sand next to the stone characters. Wei Ergou smoked a cigarette while talking about things related to gold digging or gold, he was a completely different person, I was listening to the geography teacher explain the knowledge of geography and minerals as if I was in class.

"That's right, gold is formed in the ancient and modern river bends, the Tang Dynasty great poet Liu Yuxi's famous poem "Waves and Sands": "The sun shines on the Chengzhou River and the fog opens, the gold panning women are full of Jiangkuma, and the beauty jewelry Hou Wangyin is all from the bottom of the waves in the sand." You know, Xiaosheng, right? Wei Yiyun also followed Wei Ergou's explanation.

"You know, it seems that the big waves are not panning for sand but panning for gold." I covered my mouth and laughed to hide the embarrassment of my ignorance in front of me.

You're absolutely right! Gold panning is panning for sand! Wei Ergou opened his mouth and said that I was right, in fact, I was completely joking, and he continued:

"Three mountains and four are not exposed, and the three mountains are "one mountain", "Guanmen Mountain" and "Yingmen Mountain" are three kinds of mountains summarized according to the characteristics of gold mines. Among them, "a mountain" is the gold mountain in the upper reaches of the river valley, generally this kind of mountain is relatively tall, we call it not exposed, this kind of mountain is the quartz vein, that is, the rock gold mountain. According to our experience in Kinmen, it is extremely likely that placer gold deposits will form in the lower valleys of the mountains where there are such mountains. "Guanshanmen" is the pincer-shaped mountain of the river valley, also known as "Guanmenzuizi". "Yingmen Mountain" is the facing mountain of the river at the bend of the river valley, also known as "not showing the mouth", "not showing the mouth". This landform is a favorable sign of placer gold mineralization. Above "Guanmen Mountain" or in the river valley in front of "Yingmen Mountain", it is a place rich in gold place. Therefore, there is also the saying of "four not exposed", which refers to "not revealing the mouth in front of the ditch", "not revealing the block behind the ditch", "not revealing the wind in the ditch" and "not revealing the whole ditch". “

"Awesome, it feels like a martial arts cheats, talking about martial arts mantras, three mountains and four without revealing it." I was blinded by Wei Ergou's words, and I didn't understand what he was saying, but I only understood one thing, there is a placer gold mine in the ditch at the foot of the Yanjin Mountain.

In addition, we also have sayings that "the small ditch comes out of the mouth", "the big ditch has legs", and "the big groove is not small in the stomach". A small ditch is a small valley with a length of less than three kilometers. "Small ditch mouth" means to pay attention to the search for placer gold ore at the exit of small ditch. A length of more than 10 kilometers is a large ditch. "The big ditch has legs", i.e. placer gold deposits are found in larger river valleys, so it is possible to find placer gold deposits in some of the tributaries upstream of it. Conversely, if there are placer gold deposits in the branch valley, there may also be placer gold deposits in the main valley. The middle ditch is generally three to ten kilometers long, and the main mineralization is in this valley. "Wei Ergou is another set of theories that sound very mysterious to me, and I am in a fog when I hear it.

"It's the first time I've been here!" Wei Yiyun listened carefully to Professor Wei Ergou's explanation like a student listening to a lecture.

"I don't really understand, you just said, on the rocky slope, we saw three mountains, Erica said that the middle of the mountain is a gold mine, why do you say that the foot of the leftmost mountain is a gold mine?" I asked Wei Ergou unrelentingly. "Three mountains and four don't show up!" Wei Ergou repeated these five words, "Have you paid attention to these three mountains, as well as the general geological distribution of the mountains below and the foot of the mountains?" “

"Huh? Still don't get it? "I've been completely confused by what Wei Ergou said.

"Then you listen to me in layman's terms, you give me a bottle of water first, and after talking too much, the water runs away, and my mother is dying of thirst." Wei Ergou asked me for mineral water, and I was anxious to listen to him continue to explain, so I handed him a bottle neatly.