Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name of lava dome | Country | Volcanic area | Composition | Last eruption or growth episode |
| --- | --- | --- | --- | --- |
| Chaitén lava dome | Chile | Southern Volcanic Zone | Rhyolite | 2009 |
| Cordón Caulle lava domes | Chile | Southern Volcanic Zone | Rhyodacite to Rhyolite | Holocene |
| Galeras lava dome | Colombia | Northern Volcanic Zone | Unknown | 2010 |
| Katla lava dome | Iceland | Iceland hotspot | Rhyolite | 1999 onwards |
| Lassen Peak | USA | Cascade Volcanic Arc | Dacite | 1917 |
| Mount Meager lava domes | Canada | Cascade Volcanic Arc | Dacite | 2350 BP |
| Mount Merapi lava dome | Indonesia | Sunda Arc | Unknown | 2010 |
| Nea Kameni | Greece | South Aegean Volcanic Arc | Dacite | 1950 |
| Novarupta lava dome | Alaska ( USA ) | Aleutian Arc | Unknown | 1912 |
| Nevados de Chillán lava domes | Chile | Southern Volcanic Zone | Dacite | 1986 |
| Puy de Dôme | France | Chaîne des Puys | Unknown | ca. 5760 BC |
| Santa María lava dome | Guatemala | Central America Volcanic Arc | Dacite | 2009 |
| Sollipulli lava dome | Chile | Southern Volcanic Zone | Andesite to Dacite | 1240 ± 50 years |
| Soufrière Hills lava dome | Montserrat | Lesser Antilles | Andesite | 2009 |
| Mount St. Helens lava domes | USA | Cascade Volcanic Arc | Dacite | 2008 |
| Torfajökull lava dome | Iceland | Iceland hotspot | Rhyolite | 1477 |
| Tata Sabaya lava domes | Bolivia | Andes | Unknown | ~ Holocene |
| Valles lava dome | USA | Jemez Mountains | Unknown | 50,000-60,000 BP |
Question:
What is the composition at Valles lava dome?
Answer:
Unknown