Recently, the Ministry of Natural Resources released the "Survey Report on the Topography and Geomorphology of Diaoyu Dao and its Affiliated Islands", which once again aroused public attention to this mysterious territory. This article will delve into the geological structure and rich oil and gas resources of the Diaoyu Islands, revealing the uniqueness of this inherent Chinese territory.
1. Historical origins.
Since the 15th century, most of China's envoys to the Ryukyu Kingdom traveled to Ryukyu via Fuzhou via Taiwan and the islands to the northeast, and the Diaoyu Islands and their affiliated islands were regarded as the border between Taiwan and the Ryukyus. Although Japan did not include it in Okinawa Prefecture before 1894, in the Sino-Japanese War, after the defeat of the Qing Dynasty, the Penghu Islands were ceded to Japan, so that the Diaoyu Islands were incorporated into Japanese territory.
After World War II, under Article 3 of the San Francisco Peace Treaty, the United States** imposed a military occupation of the islands south of the 29th parallel. Although Japan acquired the administrative rights of the Diaoyu Islands in 1972, the area has not been officially developed due to disputes between various parties.
China ratified the Convention on 15 May 1996, according to which China has the right to exploit its resources within its exclusive economic zone 200 nautical miles from the baselines of its territorial sea, and the waters around the Diaoyu Islands are also within the scope of development.
2. Geographical environment.
The Diaoyu Islands are composed of 8 uninhabited islands and reefs, including the main island, Huangwei Yu, Chiwei Yu, Nanxiao Island, Beixiao Island, Beixiao Island, Beiyu Island, Nanyu Island and Hirose Island. It is located about 356km from Wenzhou City, about 385km from Fuzhou City, about 190km from Keelung City, about 385km south-east of Fuzhou Changle International Airport in Fujian, and about 417km from south-west of Naha Airport in Okinawa, Japan.
The main island is sweet potato-shaped, about 35km, about 15km, with a total area of about 43km²。The terrain is flat in the north and steep in the south, with mountains running from east to westThe highest peak is 362m above sea level and is located in the middle. There are also a number of mountain peaks with elevations of 320m, 258m, and 242m, and 4 major streams, which are located on the continental shelf of the East China Sea.
3. Geological background.
The Diaoyu Islands are part of the continental shelf of the East China Sea and belong to the central low bulge of the continental shelf of the East China Sea. This area has experienced many depressions and uplifts from the Paleocene to the Quaternary, forming a rich geological formation. The Xihu Sag is a typical representative, which has experienced the development process of Paleocene-Eocene transition edge depression, Oligocene and Miocene intracontinental migration depression, and Pliocene Quaternary post-arc shelf edge depression.
By the Miocene, about 23 million years ago 5 million years ago, the Diaoyu Islands and their affiliated islands continued to rise and became islands, which were subjected to sea erosion, creating scattered sandy beaches on the edge of the islands, forming modern coral reefs.
4. Oil and gas resources.
The Diaoyu Islands, located in the West Lake depression on the continental shelf of the East China Sea, are an oil-rich area with an area of nearly 4 10 4 km. Drilling revealed that the formation time of the sag is relatively recent, about 65 million years ago, and the sedimentary strata within it include Quaternary, Upper Tertiary and Lower Tertiary Eocene Wenzhou Formation.
The main source rocks in the Xihu Sag are the Pinghu Formation, and the Huagang Formation also has more dark mudstones in the southern part of the Sag, which has certain hydrocarbon generation potential. The Miocene Longjing Formation and Yuquan Formation have a thick carbonaceous mudstone section in the northern part of the sag, and although they are not effective source rocks because they are too shallow to be buried, they may become effective source rocks in deep buried areas such as the western sub-sag.
The West Lake Sag is considered to be another prospect rich in natural gas resources in China's sea area, and has a large potential for natural gas resources.
Conclusion] By delving into the geology and resource status of the Diaoyu Islands, we have a better understanding of the uniqueness of this mysterious territory. Its abundant oil and gas resources not only provide strategic resource support for China, but also highlight China's adherence to and protection of its inherent territory. In the embrace of the motherland, Diaoyu Dao continues to be an inseparable part of the Chinese nation.
Demystifying China's Inherent Territory: The Geological Mysteries and Oil Bonanzas of the Diaoyu Islands" elaborates on the historical background, geographical environment, geological background, and oil and gas resources of the Diaoyu Islands, presenting readers with a full picture of this disputed territory. In reviewing this article, I think it has the following notable features:
First of all, when discussing the historical origins, the article fully emphasizes China's sovereignty claim over the Diaoyu Dao, from the historical evolution of the 15th century to the territorial dispute in modern times, bringing the reader into a rich and complex time and space background. This will help readers better understand the deep-seated causes of the Diaoyu Dao issue and enhance their objective understanding of the dispute.
Secondly, through the vivid depiction of the geographical environment, the article enables the reader to sketch the true face of the Diaoyu Islands in their minds. The detailed geographical coordinates, the shape of the islands, and the topography all provide the reader with a three-dimensional and clear impression, making the abstract territorial dispute issue more concrete and palpable.
This paper makes an in-depth analysis of the geological background, especially the tectonic evolution of the continental shelf in the East China Sea, and highlights the geological characteristics of the West Lake Sag. This part not only showcases the expertise of geology, but also reveals the complex process of the formation of the Diaoyu Islands, so that readers can have a deeper understanding of its unique geological formation.
Nothing stands out more than the detailed description of oil and gas resources. The article points out that Diaoyu Dao is located in the oil-rich West Lake depression and is a natural gas resource area with great development potential. This discovery is not only related to the development of China's energy strategy, but also makes people pay more attention to the geopolitical and economic value of the Diaoyu Islands.
Overall, this article treats the issue of the Diaoyu Islands in an objective and detailed manner, interpreting geological information from a scientific perspective, and at the same time focusing on conveying a firm attitude towards territorial protection. Through the simple writing style, readers can not only gain professional knowledge in the process of reading, but also feel a deep love for the territory of the motherland. Such articles are not only popular science, but also provide readers with a more comprehensive and in-depth perspective on the Diaoyu Dao issue.
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