| Thus, the surface to volume ratio should be related to silicic acid flows in size-based biogeochemical models of planktonic ecosystems. |
| In geothermal waters, hydrogen sulphide, silicic acid, and boric acid may also be important. |
| The silicic rocks are interpreted as crustal melts resulting from intrusion of mafic magmas. |
| Additional weak silicic solutions formed thin encrustations of quartz on the calcite in delicate encrustation pseudomorphs. |
| Salic magmas ranged widely from silicic to feldspathoidal and from peraluminous to peralkaline. |
| In the Antarctic Peninsula, an early Jurassic gap in intrusive activity was followed by widespread mid-Jurassic silicic plutonism in eastern Graham Land. |
