We studied the distribution and stable carbon-isotopic (δ 13 C) composition of various lipid
biomarkers in suspended particulate matter (SPM) from the water column of Lake Chala, a …

Triterpenoids and their derivatives are ubiquitous in sediment samples. Land plants are
major sources of nonhopanoid triterpenoids; these terpenoids comprise a vast number of …

Two unusual tricyclic terpanes (compounds X and Y) and four tetracyclic terpanes
(compounds X1, Y1, Z, and Z1) have been detected in crude oils from the Pearl River Mouth …

Reconstructing past climate change in mangrove swamps contextualizes ongoing and future
developments in these globally important ecosystems. Taraxerol, a well-recognized lipid …

Amazon rivers and flooded areas can be categorized into three types of water: white, black,
and clear. These categories present unique physical–chemical characteristics that influence …

Abstract des-A-triterpenoids have been widely recognized as indicators of terrestrial
vascular angiosperms and microbial activities. However, recent studies also suggested …

Wildfires are important in modern ecology but the complex interplay between wildfires and
vegetation or climate is less well understood in ancient environments, in particular those of …

Abstract Miocene paleoecology of East Africa has implications for human origins and
understanding the vicariant legacy forests found today on either side of the East African Rift …

Hydrocarbons were analyzed in sediments from the Congo River deep-sea fan, from the
Congo River, and in sinking particles collected by sediment traps 40 m above the sediment …

地质载体中保存的脂类来源于生物细胞膜, 叶片蜡质层等, 能够指示特定的生物分类学类群或
微生物功能群, 也能够记录生物生长或早期成岩过程中的生态环境信息, 已经成为第四纪古环境 …