沉积记录显示地球上第一次大量的石灰岩来自[叠层石][1]和有孔虫的前寒武纪[2]。生活爆炸后,两个主要的碳酸存款注册:* * -强大的盆地沉积在海岸珊瑚礁[3]。* * * *——大型底栖生物存款(有孔虫)[4]和[coccolithophoridae][5]在海底* *石灰岩使用这些骨骼碎片,由碳酸钙胶结成岩作用。一个例外(结晶灰岩)[6],已经改变了他们的纹理和skelets不知名的,但这并不意味着碳酸钙不是有机的起源。还有一个例外,注意到:[鲕粒岩][7]。鲕粒岩及具体的东西在一个生物碎屑或碎屑。我读过的是在海滩由于藻类结构形成。总之,非寿险岩石行星可以产生碳酸盐在他第一次岩浆阶段。岩石被称为[碳酸盐岩][8],隔层岩浆岩,沉积的石灰岩。你可以有一些分散的积淀(水泥)[9]是碳酸钙,但没有碎屑,所以它不会是一个石灰岩。 There are too terrestrial limestones formed on lakes and rivers called [tufa][10]. > "Recently it has been demonstrated that microbially induced > precipitation may be more important than physico-chemical > precipitation. Pedley et al. (2009)[10] showed with flume experiments > that precipitation does not occur unless a biofilm is present, despite > supersaturation." > source: [wikipedia (see quoted paper)][10] [There is no evidence of such deposits on Mars neither][11]. Carbonates are found , but being magnesite (MgCo3) the main carbonate with little percentages of calcite. So, I can be wrong, but my answer to "significant amounts" is no, knowing little deposits of CaCO3 could thermodinamicaly been formed on a non-life rocky planet. [1]: https://en.wikipedia.org/wiki/Stromatolite [2]: https://en.wikipedia.org/wiki/Precambrian [3]: https://en.wikipedia.org/wiki/Coral_reef [4]: https://en.wikipedia.org/wiki/Foraminifera [5]: https://en.wikipedia.org/wiki/Coccolithophore [6]: https://en.wikipedia.org/wiki/Dunham_classification [7]: https://en.wikipedia.org/wiki/Oolite [8]: https://en.wikipedia.org/wiki/Carbonatite [9]: https://en.wikipedia.org/wiki/Cementation_(geology) [10]: https://en.wikipedia.org/wiki/Tufa [11]: https://en.wikipedia.org/wiki/Carbonates_on_Mars