有“水下物体”在澳大利亚引起磁20度的偏差?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t16:09:35z //www.hoelymoley.com/feeds/question/15222 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/15222 10 有“水下物体”在澳大利亚引起磁20度的偏差? uhoh //www.hoelymoley.com/users/6031 2018 - 10 - 02 - t09:39:12z 2019 - 04 - 06 - t20:07:32z < p > < a href = " https://outdoors.stackexchange.com/a/15158/12619 " >答案引用< / > < a href = " http://cameronrobbins.com/mount-jim/ " rel = " noreferrer " > < / >这个博客一个磁异常的例子:< / p > < blockquote > < p >玄武岩的形成,“太。吉姆”,在偏远的东北部维多利亚,澳大利亚,有一个磁异常-20度磁罗经变化引起的大规模,未知,水下物体。< / p > < /引用> < p >真的有一个验证磁异常在维多利亚东北部,澳大利亚20度?如果是这样,有一种自然发生的现象(如大型地下铁磁岩层)导致吗?< / p > < p >链接一些偏差地图或其他验证,定量源请求,谢谢!< / p > < p > < a href = " https://i.stack.imgur.com/JzG1S.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/JzG1S.jpg " alt = "太。吉姆磁异常维多利亚,澳大利亚" > < / > < / p > //www.hoelymoley.com/questions/15222/is-there-a-submerged-object-in-australia-that-causes-a-magnetic-deviation-of-2/15228 # 15228 5 卡米洛·Rada回答的有“水下物体”在澳大利亚引起磁20度的偏差? 卡米洛·Rada //www.hoelymoley.com/users/11908 2018 - 10 - 02 - t22:26:00z 2018 - 10 - 02 - t22:26:00z < p >山吉姆在你地图似乎是一个位于36°55 17”和147°13“01”e .尽管磁异常没有被映射在整个世界,在< a href = " http://geomag.org/models/wdmam.html " rel = " noreferrer " >世界数字磁异常图< / >提供了最佳的编译,并有很好的数据在你感兴趣的领域。< / p > < p >我装载的磁异常数据< a href = " http://geomag.org/models/wdmam.html " rel = " noreferrer " >世界数字磁异常图< / >,和情节太。吉姆在它的位置(红点),相比之下,在卫星地图显示相同的点。在接下来的gif动画:< / p > < p > < a href = " https://i.stack.imgur.com/9CnXd.gif " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/9CnXd.gif " alt = "在这里输入图像描述" > < / > < / p > < p >正如你所看到的,它似乎并没有任何特别显著的异常在Mt。吉姆。然而,这个数据显示5公里的磁异常降低高度。因此,非常强大,但局部异常可能不会出现在这里。< / p > < p >离间你参考另一件事,是磁异常不会产生一个一致的“-20度磁罗经变化”。相反,大小和方向的变化强烈依赖于距离和你相对于异常。< / p > //www.hoelymoley.com/questions/15222/is-there-a-submerged-object-in-australia-that-causes-a-magnetic-deviation-of-2/15232 # 15232 6 Gimelist回答的有“水下物体”在澳大利亚引起磁20度的偏差? Gimelist //www.hoelymoley.com/users/725 2018 - 10 - 03 - t12:38:59z 2018 - 10 - 03 - t12:38:59z < 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).

Baidu
map