Helium concentrations of late Miocene sediments

Throughout the history of the Solar System, Earth has been bombarded by interplanetary dust particles (IDPs), which are asteroid and comet fragments of diameter 1-1,000 µm. The...在太阳系的演化历史中，地球始终遭受着行星际尘埃粒子（interplanetary dust particles，IDPs）的轰击，这类粒子是直径介于1至1000微米的小行星与彗星碎片。