Publications by authors named "Samuel L Goldberg"
Fertile soil known as Amazonian dark earth is central to the debate over the size and ecological impact of ancient human populations in the Amazon. Dark earth is typically associated with human occupation, but it is uncertain whether it was created intentionally. Dark earth may also be a substantial carbon sink, but its spatial extent and carbon inventory are unknown.
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- * Using the Greenfin Darter fish as a case study, the study shows that erosion of different rock types led to separate evolutionary paths for fish lineages, particularly in areas with metamorphic rock.
- * The findings suggest that geological changes can drive species divergence even in stable (tectonically inactive) mountainous environments, long after tectonic activity has subsided.
The spatial coverage and temporal resolution of the Early Paleozoic paleoclimate record are limited, primarily due to the paucity of well-preserved skeletal material commonly used for oxygen-isotope paleothermometry. Bulk-rock [Formula: see text] datasets can provide broader coverage and higher resolution, but are prone to burial alteration. We assess the diagenetic character of two thick Cambro-Ordovician carbonate platforms with minimal to moderate burial by pairing clumped and bulk isotope analyses of micritic carbonates.
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