< p >我不同意Camilo Rada的回答表明,绝对是一个磁异常。< / p > < p >我们开始与< a href = " http://www.ga.gov.au/interactive-maps/ /主题/矿产/地图/地球物理学“rel = " noreferrer " >交互式物理地图的> < /澳洲澳大利亚联邦地球科学机构。我们地区是:< / p > < p > < a href = " https://i.stack.imgur.com/2xdHX.png " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/2xdHX.png " alt = "在这里输入图像描述" > < / > < / p > < p >这是同一地区与磁场强度层打开:< / p > < p > < a href = " https://i.stack.imgur.com/hgwEf.png " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/hgwEf.png " alt = "在这里输入图像描述" > < / > < / p > < p >你可以看到一个明显的磁异常,它实际上是更广泛的比在地图上指出。< / p > < blockquote > < p >如果是这样,有一种自然发生的现象导致吗?…< / p > < /引用> < p >在一般情况下,像这样的问题的答案<强>对< /强>。但是让我们进一步探讨它的地质图面积:< / p > < p > < a href = " https://i.stack.imgur.com/tE5qc.png " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/tE5qc.png " alt = "在这里输入图像描述" > < / > < / p > < p >总的来说,周围的岩石类型是“OSn”和“操作系统”。根据< a href = " http://pid.geoscience.gov.au/dataset/ga/74855 " rel = " noreferrer " > < / >传奇,这些是优质变质奥陶纪、志留纪的岩石,岩石和邻近siliclastic哪些告诉我他们不应该太磁(磁确认地图)。的面积太吉姆“Dg”(=泥盆纪花岗岩)可能有点磁性。但这是你正在寻找的东西:“Czb”,这是新生代玄武岩的缩写。和玄武岩是磁。< / p > < p >所以回答你的问题,磁异常的源代码并不是一个“淹没”(埋会更合适在这里顺便说一下),但<强>玄武岩完全暴露在表面< / >强。 EDIT
Interestingly, the blog post mentions the presence of basalt, so it's not entirely clear why they claim that there's a "massive, yet unknown, submerged object". Most probably there's simply more basalt, or its intrusive analogue: dolerite or gabbro. These targets are attractive for the mining industries. I would be surprised if it hasn't been drilled at some point by an exploration company, and then the underground cause of the anomaly would be very well known (but probably not publicly).