How did the stone anchor at the bottom of Verdi Peninsula in palos come from?

1975, twenty or thirty stone anchors with holes were found in the waters near Fordism Peninsula in palos, Southern California, USA. They sleep at the bottom of the sea from 37 meters to 76 meters deep and are distributed over an acre. For more than ten years, academic circles have different opinions on the origin and manufacturing age of these stone anchors, which eventually became a mystery.

At first, it was generally believed that these stone anchors were not produced in California, but probably left by Asian ships that arrived in America. However, at 1980, the Department of Geology of the University of California verified that these stone anchors were not brought from the other side of the ocean and Asia, but were made of pages from Monterrey, California. This shale is one of the most common coastal rocks in Southern California.

Also 1980, at the academic conference on water transport research held in Beijing, two marine archaeologists from the University of San Diego, USA, James? r？ Professor Molly Aledi and Lalan? j？ Professor Pierre introduced their research results on the above-mentioned stone anchors to the participants. They think that these stone anchors were made in China. They may have arrived in America with a ship from China in 500 to 2,500 years, or even earlier, and then were scattered in the sea due to the shipwreck. They think that before Columbus discovered America, China had sailed to California. These stone anchors show that the conclusion that China first discovered America is correct. According to the professors, there are many signs that there is the remains of an ancient China shipwreck on the seabed near Southern California, and two huge stone anchors are buried in the mud at a depth of 2 1 meter. This ancient China is about 24 meters long and can seat 75 ~ 65,438+050 people. Among the relics found by two stone anchors is a stone weighing 130 kg, which they think may be a rice mill used by China people to grind grains. No metal or ceramic products were found near these stone remains, which just shows that this sunken ship is quite old, and it has been in the United States for a long time.

However, at the same time, a professor of navigation history at the University of California? Frost came up with a different conclusion. Frost thinks that these stone anchors were lost by China fishermen who lived on the California coast less than 100 years ago. His argument is:/kloc-In the middle of the 9th century, a large number of China "Chinese laborers" were forced to cross the ocean to California on the west coast of the United States. At first, they were mainly engaged in mining and road construction. Later, some people stayed in the coastal areas, taking fishing as their profession, because most of these "Chinese laborers" from China came from the Pearl River Delta, and they had rich fishing experience. The fishing industry in California was founded by these China people. From the shape, the perforated stone anchor has the characteristics of China stone anchor, which is similar to that used by fishermen in the southeast coast of China at that time. Therefore, it can be considered that the sea area near Foday Peninsula in palos was the fishing area of China people at that time, and those perforated stone anchors were on the fishing boat in China and lost on the seabed due to the broken anchor chain. These stone anchors prove the pioneering contribution of immigrants from China to the development of fishery on the west coast of the United States.

The debate about these submarine stone anchors continues, and people expect to solve this mystery as soon as possible.