最近30从www.hoelymoley.com 2023 - 07 - 07 - t14:42:06z //www.hoelymoley.com/feeds/question/18526 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/18526 6 Lacobus //www.hoelymoley.com/users/18381 2019 - 11 - 21 - t19:36:22z 2019 - 11 - 22 - t07:52:12z

< p >在我穿过城市的街道之一,我注意到一些玄武岩人行道块构成的表面一些非常奇怪的自然模式:< / p > < p > < a href = " https://i.stack.imgur.com/DlBWh.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/DlBWh.jpg " alt = "在这里输入图像描述" > < / > < / p > < p > < a href = " https://i.stack.imgur.com/TFuUE.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/TFuUE.jpg " alt = "在这里输入图像描述" > < / > < / p > < p > < a href = " https://i.stack.imgur.com/udcDP.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/udcDP.jpg " alt = "在这里输入图像描述" > < / > < / p > < p > < a href = " https://i.stack.imgur.com/1lnff.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/1lnff.jpg " alt = "在这里输入图像描述" > < / > < / p > < p >上面的照片是在< a href = " https://en.wikipedia.org/wiki/Porto_Alegre " rel = " noreferrer " > < / >城市阿雷格里港,巴西。(坐标:< a href = " https://www.google.com/maps/place/30%C2%B001& # 39; 59.0“S + 51% c2%b013& # 39; 48.0“W”rel = " noreferrer " > 30°01′59 51 S°13′48”W < / >) < / p > < p >这些碎片形的模式是什么?当他们是如何形成的?这是某种有机的形成吗?是活人还是某种化石吗? < / p >

//www.hoelymoley.com/questions/18526/-/18527 # 18527 1 迈克尔Walsby //www.hoelymoley.com/users/17166 2019 - 11 - 21 - t19:46:52z 2019 - 11 - 21 - t19:56:41z

< p >他们很漂亮,但它们不是化石。他们让我想起霜有时使窗口窗格的模式。类似的过程是在这里工作,虽然矿物轴承水渗透而不是霜的原因。水渗透存款晶体在磐石上。< / p >

//www.hoelymoley.com/questions/18526/-/18530 # 18530 7 Gimelist //www.hoelymoley.com/users/725 2019 - 11 - 22 - t07:52:12z 2019 - 11 - 22 - t07:52:12z

< p >这是最有可能的锰树突。它不是一个化石,而不是有机的。这些通常形成在岩石的裂缝,这最有可能沿着现有裂纹板坏了。< / p > < p >现在你可以阅读更多关于它:< a href = " https://www.mindat.org/min - 26645. - html”rel = " noreferrer " > https://www.mindat.org/min - 26645. - html < / > < / p > < p >一个评论:这不是玄武岩。玄武岩是黑色的。最有可能的某种形式的石灰石。< / p >

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