![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/%25D7%25A4%25D7%2590%25D7%25A8%25D7%25A7_%25D7%2594%25D7%259B%25D7%25A8%25D7%259E%25D7%259C_5_-_%25D7%2592%25D7%25A0%25D7%2599%25D7%259D_%25D7%259C%25D7%2590%25D7%2595%25D7%259E%25D7%2599%25D7%2599%25D7%259D_%25D7%2591%25D7%25A6%25D7%25A4%25D7%2595%25D7%259F_%25D7%2594%25D7%2590%25D7%25A8%25D7%25A5_-_%25D7%2590%25D7%25AA%25D7%25A8%25D7%2599_%25D7%259E%25D7%2595%25D7%25A8%25D7%25A9%25D7%25AA_2016_%2528540%2529.jpg/640px-%25D7%25A4%25D7%2590%25D7%25A8%25D7%25A7_%25D7%2594%25D7%259B%25D7%25A8%25D7%259E%25D7%259C_5_-_%25D7%2592%25D7%25A0%25D7%2599%25D7%259D_%25D7%259C%25D7%2590%25D7%2595%25D7%259E%25D7%2599%25D7%2599%25D7%259D_%25D7%2591%25D7%25A6%25D7%25A4%25D7%2595%25D7%259F_%25D7%2594%25D7%2590%25D7%25A8%25D7%25A5_-_%25D7%2590%25D7%25AA%25D7%25A8%25D7%2599_%25D7%259E%25D7%2595%25D7%25A8%25D7%25A9%25D7%25AA_2016_%2528540%2529.jpg&w=640&q=50)
Tlo
From Wikipedia, the free encyclopedia
Tlo (zemljište) je rahli površinski dio Zemljine kore u što ubrajamo: prah, glinu, pijesak, šljunak, mješavine pijeska, šljunka i praha, pa čak i glina.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/%D7%A4%D7%90%D7%A8%D7%A7_%D7%94%D7%9B%D7%A8%D7%9E%D7%9C_5_-_%D7%92%D7%A0%D7%99%D7%9D_%D7%9C%D7%90%D7%95%D7%9E%D7%99%D7%99%D7%9D_%D7%91%D7%A6%D7%A4%D7%95%D7%9F_%D7%94%D7%90%D7%A8%D7%A5_-_%D7%90%D7%AA%D7%A8%D7%99_%D7%9E%D7%95%D7%A8%D7%A9%D7%AA_2016_%28540%29.jpg/640px-%D7%A4%D7%90%D7%A8%D7%A7_%D7%94%D7%9B%D7%A8%D7%9E%D7%9C_5_-_%D7%92%D7%A0%D7%99%D7%9D_%D7%9C%D7%90%D7%95%D7%9E%D7%99%D7%99%D7%9D_%D7%91%D7%A6%D7%A4%D7%95%D7%9F_%D7%94%D7%90%D7%A8%D7%A5_-_%D7%90%D7%AA%D7%A8%D7%99_%D7%9E%D7%95%D7%A8%D7%A9%D7%AA_2016_%28540%29.jpg)
Tlo nastaje mehaničkim trošenjem svih vrsta stijena.
Ovisno o vrsti tla, ono može povećavati svoj volumen ili ga smanjivati (ovisno o postotku vode koju sadrži). Tlo je nehomogeno i znatno je deformabilnije (stišljivije) od stijena.
Tla prema vrsti dijelimo na:
- koherentna tla – to su vezana tla: prah, glina, organsko tlo
- nekoherentna tla – nevezana tla: šljunak, pijesak i njihove mješavine
U tlo neki svrstavaju još i treset (tj. ugljen, koji se najčešće nalazi u šljuncima, između proslojaka).
Znanost o tlu u građevinarskom smislu može se podjeliti prema područjima izučavanja na dva glavna dijela: mehanika tla i statika tla.
Grana geologije koja se bavi proučavanjem tala zove se pedologija.