Did you know that the Simpkins Swim Center is the former site of a cement plant that manufactured the cement tetrapods used in the harbor jetty? In the back of their parking lot is access to a short set of trails managed by Twin Lakes State Park. These trails meander through sunny meadows and shady oaks and lead to views of the Pacific Ocean and Schwan Lake.
Historyof Schwan Lake Schwan Lake was once a lagoon that connected to the ocean and is named after Jacob Schwan, an immigrant from Germany who owned and farmed on the land in the 1860s. In the 1880s the lagoon had bridges and a railroad trestle crossing over it. After the construction of East Cliff Drive in the 1930s the lagoon was blocked from the ocean. This caused it to seasonally dry up and become very smelly. In 1977 a weir gate was installed so now the lagoon is a lake and never dries up! A weir gate is like a dam but it allows water to flow over the top of it once the lake reaches a certain water level.
Explore these resources developed by the Museum for understanding fire ecology in Santa Cruz County and learning about the impacts of the CZU Lightning Complex. Contribute to our understanding by joining the CZU Lightning Complex and Community Science Project.
Fire is a natural part of the California landscape and plays an integral role in our local ecology. For millennia, Indigenous communities have stewarded the land with fire, but centuries of fire suppression, periods of … Read more
Fire is a critical aspect of California ecology. This talk from Tim Hyland, Natural Resource Program Manager for the Santa Cruz District of California State Parks, will discuss fire ecology in California in general, local … Read more
Archaeologists can analyze charred seeds and other plant remains to learn about relationships between people and the natural world deep into the past. This talk will describe how a collaborative research project between Amah Mutsun … Read more
An Opportunity for Fire Survivors to Have Their Voices Heard From residents to researchers, our community has put in countless hours recovering from the CZU Lightning Complex fires of August 2020. In addition to physical … Read more
After fire, ecosystems can experience many changes. There can be increased risk of erosion and novel species can invade new areas, but fire can also reveal plants that have been waiting years for this natural … Read more
Many of our native plants in the Santa Cruz Mountains are fire adapted, from the familiar coast redwood (Sequoia sempervirens) to the extremely rare Santa Cruz cypress (Hesperocyparis abramsiana) and Santa Cruz wallflower (Erysimum teretifolium). … Read more
In August 2020, Northern California was ignited by a series of 650 wildfires spurred by dry lightning from rare, massive summer thunderstorms. Today, all of California is experiencing drought conditions and fire season is well … Read more
Many had to evacuate the Santa Cruz Mountains during the CZU Lightning Complex fires of August, 2020, including museums, visitor centers, and cultural heritage sites managed by California State Parks. Jenny Daly, museum curator for the Santa … Read more
Fire is many things to the Amah Mutsun and other California Indian Tribes — it is sacred, it is a tool gifted by Creator, and it is a way to restore balance to Mother Earth. … Read more
The CZU Lightning Complex fires burned roughly 80% of the old growth redwood forests in the Santa Cruz Mountains, notably including Big Basin, the largest contiguous stand of old growth redwoods south of Humboldt County. While … Read more
The area impacted by the CZU Lightning Complex Fires hosts a slew of rare plants. As we enter spring, the season of new growth, botanists will be paying close attention to these rare plants, but … Read more
In this edition of Rock Record, the Geology Gents unearth a few key examples of how newly exposed outcrops have led to important geological insights, as well as some geologic exploration into freshly exposed rock … Read more
As mushroom hunters, we enjoy traveling far and wide, bouncing from place to place and following the rains to stay with the season. But what happens when we focus on revisiting the same small areas … Read more
Geomorphologist Noah Finnegan provides an overview of the science linking wildfires and debris flows in California, including lessons learned from the 2009 Lockheed Fire in the Santa Cruz mountains. Particular emphasis is paid to how … Read more
California’s Coastal Prairies are a rare and incredibly biodiverse habitat found in Santa Cruz, and the most species-rich grassland type in North America. Despite its rarity and species-richness, this is a habitat-type at risk of … Read more
Redwoods are the tallest trees on earth, with lifespans that reach into the thousands, but their range is relatively small. A combination of longitude, climate, and elevation limit where they grow to a few hundred … Read more
This month, the Geology Gents are joined by their colleague Alandra Lopez, a Ph.D. candidate in the Earth System Science Department at Stanford University who will discuss the impacts of fire on geologic systems, as … Read more
The vernal equinox marks one of two moments per year when the sun is exactly above the equator and day and night are of equal length. This means that we exit the days of mostly darkness and enter a time of increasing light.
Spring is traditionally a season of transition and new birth: snow melts, seeds grow, and blossoms bloom. This year, the vernal equinox that marks the beginning of spring also represents one year since we began sheltering-in-place. Four seasons have passed and our community has experienced the ebb and flow of the pandemic in tandem with the natural cycles of the Earth.
As we prepare for this next transition, welcoming new growth in fire scarred areas and fresh nectar in our gardens, we also look forward to our own revitalization. The Museum is excited to reopen our doors this spring and host more programs outdoors and in nature than ever before. But we continue to straddle the line of branching out and keeping shelter as our community continues to be impacted by the COVID-19 pandemic. In addition to in-person opportunities, we will continue to offer virtual resources that bring the Museum to you.
And it is with this period of transition in mind that we bring you the Equinox Elixir: a curated cocktail that is equal parts dark and light. We used gin from Venus Spirits for this recipe, a local distillery that sponsored an event we were meant to host last year for the equinox, but had to cancel in an effort to stop the spread of the coronavirus. Today, we toast them and you as we prepare for brighter days ahead.
1.5 oz of cherry syrup (such as from a jar of Luxardo cherries)
The Equinox Elixir once mixed, combining the tart sweetness of the cherry syrup with the fresh botanical quality of Venus’s Gin No. 1.
Recipe
A layered cocktail utilizes liqueurs of slightly different densities to create visual layers in the drink, with the specific gravity of the liquid ingredients increasing from top to bottom. Water has a specific gravity of 1.0, whereas our thick syrup has a specific gravity of 1.8 and our gin is around .95.
Pour your ingredient with the higher specific gravity first (i.e. cherry syrup) into a martini glass, taking care to pour straight down the center so that the syrup doesn’t coat the walls of the glass where you don’t want it to. Then, shake your gin with an ice cub in a cocktail shaker vigorously for a few seconds. Turn a tablespoon upside down and place it just over the glass. Slowly pour the gin over the spoon so that it slowly spills into the glass without mixing with the syrup.
Marvel at its dichotomy and then give it a stir to mix the flavors together and enjoy!
There are few names in our local naturalist community that are as universally revered as that of Randall Morgan. Also known as Randy or R, Morgan was a pillar of the local natural history community.
Though he passed away a few years ago, his influence on the natural world and those who celebrate it in Santa Cruz is evident from the the Sandhills that his activism helped to save, to the local chapter of the California Native Plant Society that he helped found, to the Santa Cruz Museum of Natural History where he worked as a taxidermist to pay for studying linguistics at UC Santa Cruz. His legacy also lives on in the collections of the Kenneth S. Norris Center for Natural History.
Join Kathleen Aston, Collections Manager at the Santa Cruz Museum of Natural History, and Chris Lay, Director of the Kenneth S. Norris Center for Natural History, for an exploration of Randall Morgans life and legacy, including his collections, taxidermy, and conservation efforts.
This month’s Collections Close-Up is in sponsorship of the exhibit Look. Act. Inspire., celebrating the naturalists of Santa Cruz County. It is presented in partnership between the Kenneth S. Norris Center for Natural History, the San Lorenzo Valley Museum, and the Santa Cruz Museum of Natural History.
We’re celebrating 33 years of exhibiting science illustration at the Santa Cruz Museum of Natural History with an online opening reception for this year’s The Art of Nature.
Featuring staff exhibit curators Liz Broughton (Visitor Services Manager), Marisa Gomez (Public Programs Manager), and Felicia Van Stolk (Executive Director), as well as artists Sami Chang and Megan Gnekow (artist curator).
Geology literally means the study of the Earth, so why are we digging into the Moon for this month’s Rockin’ Pop-Up? Well, as the Geology Gents put it, “The moon is basically the Earth.” Say what? Don’t worry, all will be revealed. This month, learn about the formation of our moon and how scientists study it.
About the Series: Join the Geology Gents, Gavin and Graham, for monthly conversations about rocks live on Facebook. Each month we’ll explore a different geologic topic, from Santa Cruz formations to tips for being a more effective rockhound. Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz.
Submit your questions ahead of time by emailing events@santacruzmuseum.org and feel free to include pictures of rocks you’d like identified! Note: you do not need to have a Facebook account to be able to watch the program live.
Meet Rocio Sánchez-Nolasco, our Public Programs Coordinator, and newest member of the Museum team. Rocio grew up in Santa Cruz County and has cultivated her life-long appreciation for nature through gardening and by exploring local wetlands, beaches, and forests.
Like many locals, Rocio recognizes how special our region is. “I was fascinated and inspired by the diversity of habitats in the Central Coast, and beyond,” she said. “I think knowing that there is always something new out there to learn about constantly motivates and inspires me to research and get out in nature more.”
Rocio graduated from the University of California, Los Angeles with a B.A. in Art History and a minor in Digital Humanities. While at UCLA, Rocio learned about the importance of museum education and public programming in helping bridge a sense of community among people of all walks of life and cultivating knowledge through different perspectives.
“My favorite thing about museums is that they can provide a space for new knowledge and curiosities to spark intrigue, community, and learning in an unparalleled way,” said Rocio.
In her short time here at the Museum, Rocio has already brought our community together through outdoor events such as Saturdays in the Soil and Out and About, and she continues to support our Public Programs department behind the scenes in a multitude of ways. She is excited to continue to share her passion for local ecology and museums by helping others learn and connect to nature.
In her spare time, Rocio can be found at the beach, watching horror films, or making art. One of her favorite outdoor spaces to visit locally is the Elkhorn Slough National Estuarine Research Reserve where she enjoys viewing the vast number of plants, birds, and marine mammals that rely on this critical wetland habitat.
The area impacted by the CZU Lightning Complex Fires hosts a slew of rare plants. As we enter spring, the season of new growth, botanists will be paying close attention to these rare plants, but they’re not the only ones. A “community scientist” is anyone who makes and shares observations in an effort to contribute to scientific understanding — and we hope you will help us bring community science to the burn zone.
During this online training with Amy Patten, Rare Plant Treasure Hunt Manager for the California Native Plant Society, you’ll learn how you can search for and document rare plants as a community science volunteer. We’ll go over some of the fascinating and beautiful rare plants you can see in the burn area, as well as online tools you can use for survey efforts as part of the CZU Lightning Complex and Community Science Project.
Limited space is also available for in-person trainings on March 27 and April 15.
About the Speaker
Amy Patten works in the Rare Plant Program at the California Native Plant Society’s state office where she manages the Rare Plant Treasure Hunt project, a community science project that documents rare plant populations throughout California. Amy lives in Santa Cruz and is passionate about protecting the plants and wildlife of the Central Coast.
In this edition of Rock Record, the Geology Gents unearth a few key examples of how newly exposed outcrops have led to important geological insights, as well as some geologic exploration into freshly exposed rock and sediments exposed by the CZU Lightning Complex Fires.
By Graham Edwards and Gavin Piccione (aka the Geology Gents)
To reconstruct Earth history, geologists rely on the rock record: the accumulated rocks that, through their accumulation and formation, are relics of ancient geologic processes spanning geologic history. Such rocks provide a spyglass with which to peer into geologic history. But our view through this spyglass is limited to rocks that are both exposed at the Earth’s surface and have survived the effects of erosion.
As geologists, we often rely on Earth processes to expose new rocks and provide us fresh glimpses into Earth’s history. Since exposing fresh rock requires a lot of energy, natural disasters or extreme natural events can expose clues to this history through fresh rock surfaces. Human activities, such as construction or mining, can also expose new geological wonders.
In this edition of Rock Record, we’ll go through a few key examples of how newly exposed outcrops have led to important geological insights, as well as some geologic exploration into some freshly exposed rock and sediments exposed by the CZU Complex Fire.
Roadcuts
Roadcut in Maryland exposing large folds. Image credit: Joel Duff, Naturalis Historia
The construction of roads often requires the removal of large sections of rock, leaving sheer rock faces on the sides of the road. Some of the most famous rock outcrops are ones exposed in roadcuts and these unique locations are a frequent destination for college geology classes.
As undergraduates, the Gents (i.e. Gavin and Graham) explored roadcuts in the Northeastern US, and learned about tectonic motion through the faults and folds exposed in roadcuts (like the one in the image to the right), about metamorphic rocks via roadcuts in Maine, and about large deep-sea sediment avalanches (called turbidites) from roadcuts in upstate New York. Rocks exposed on the sides of roads can also be significant for geologist’s understanding of the sequence of events in an area.
For instance, a roadcut in Owens valley (see image below), settled a longstanding debate amongst geologists about whether the Bishop Tuff was deposited before or after the first glaciations in the area. The exposed rock showed the Bishop Tuff sitting on top of the Sherwin Till glacial deposit, meaning that the tuff must have been deposited after the till.
Roadcut in Owens valley showing the Bishop Tuff overlying the Sherwin Till. Original image taken by James St. John
Fire
Forest fires are, in many cases, an important natural event for the health of a forest because they clear the forest floor of brush and dead vegetation. Through this process, fires also expose large portions of rock that would otherwise not be visible. For this addition of Rock Record, the Gents explored some areas of the Santa Cruz mountains that have been burned in the CZU Lightning Complex fires last August.
Taking Empire Grade North, areas of Cretaceous (145-66 million years before present) igneous and metamorphic rocks that were previously covered by vegetation are exposed in the burn zone of the recent fires.
The Gents explore freshly exposed rock in an area burned by the CZU Complex fire
Close up of freshly exposed Cretaceous igneous rocks
Weather
Sometimes extreme weather events can expose new outcrops or geologic features. For instance, the Frijoles Fault of a previous Rock Record post, The Faults that Shape Santa Cruz, was hidden behind trees and shrubs until a powerful storm event in the 1970s drove enough coastal erosion to expose the fault in the sea cliffs. Even more recently, heavy rains can cause landslides on the steep topography of the Santa Cruz Mountains and Santa Lucia Mountains of Big Sur. Each of these landslides exposes new surfaces that allow geologists and geomorphologists to study what causes landslides and the ways that massive amounts of Earth can be rapidly moved down hillslopes.
The exposed Frijoles fault contact, which was long hidden behind trees and shrubs before it was revealed by a storm in the 1970s.
Meteorites
Some rocks are truly out of this world! Rocks that formed beyond Earth and arrive on Earth are called meteorites. Most meteorites come from the asteroid belt, a ring of rocky debris that dwells between the orbits of Mars and Jupiter, while some meteorites come from Mars and the Moon. As any Earth dweller knows, meteorites are incredibly rare, but they are important samples of other celestial bodies and leftovers from planet formation that we can study in close detail here on Earth. So, a meteorite fall is an incredibly exciting event for planetary scientists and geologists, alike!
One of the most important meteorites ever to land on Earth was the Allende meteorite, which landed in 1969 near the town of Pueblito de Allende in the state of Chihuahua in northern Mexico. The stone broke into pieces before it landed on Earth, but the collected chunks of this meteorite total >4,000 pounds with more pieces still found today! Because there was so much meteorite to go around, many scientists have studied it, and since the Allende meteorite is made of some of the most ancient material in our solar system it has provided an invaluable window into the earliest moments of our solar system just after the Sun formed!
Slice of Allende meteorite (Wikipedia)
Lunar meteorite (American Museum of Natural History, www.amnh.org)
What mysteries do you suppose are hiding all around you, covered by trees, houses, or soil?
Rock Record is a monthly blog featuring musings on the mineral world from Gavin Piccione and Graham Edwards.
Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz. They also host our monthly Rockin’ Pop-Ups as “The Geology Gents”.
