早白垩世 Valanginian ; Neocomian
早白垩世时期 Early Cretaceous Period
晚侏罗世至早白垩世 Late Jurassic to Early Cretaceous
中侏罗世早白垩世 middle jurassic-early cretaceous
早白垩世早期 early stage of Early Cretaceous epoch
早白垩世晚期 Late Early Cretaceous
早白垩世火山岩 early Cretaceous volcanic rocks
晚侏罗世早白垩世 late jurassic-early cretaceous
晚白垩世早期 early stage of late cretaceous
早白垩世中期—晚白垩世。
这一研究成果为黑龙江省东部早白垩世高精度地层划分对比及成煤期次的确定提供了精确的年代依据。
The result provides a foundation of exact time for the high precision stratigraphic subdivision and coal-forming period in Eastern Heilongjiang Province.
其侵位时代为早白垩世。
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